- U. S. Department of the Interior
The U S Department of the Interior protects and manages the Nation’s natural resources and cultural heritage; provides scientific and other information about those resources; and honors its trust responsibilities or special commitments to American Indians, Alaska Natives, Native Hawaiians, and affiliated Island Communities
- What is a DOI? | Finding and Using Digital Object Identifiers
A DOI (Digital Object Identifier) is a unique and never-changing string assigned to online (journal) articles, books, and other works DOIs make it easier to retrieve works, which is why citation styles, like APA and MLA Style, recommend including them in citations
- What is a DOI? - Digital object identifier
What is a DOI? A DOI is a digital identifier of an object, any object — physical, digital, or abstract DOIs solve a common problem: keeping track of things Things can be matter, material, content, or activities A DOI is a unique number made up of a prefix and a suffix separated by a forward slash This is an example of one: 10 1000 182
- What is a DOI and how do I use them in citations? - Help Center
A DOI, or Digital Object Identifier, is a string of numbers, letters and symbols used to uniquely identify an article or document, and to provide it with a permanent web address (URL)
- DOIs vs. URLs - Purdue OWL® - Purdue University
The following chart breaks down the use of DOIs and URLs in four major citation styles and provides links to OWL pages that describe DOI and or URL formatting rules for citations in those styles
- DOI NEPA Interim Final Rulemaking 7-2025
DOI NEPA Interim Final Rulemaking, dated July 1, 2025
- Digital Object Identifier System
The DOI system provides a technical and social infrastructure for the registration and use of persistent interoperable identifiers, called DOIs, for use on digital networks
- How to find an articles DOI - Citing Sources - Centre College
A DOI (Digital Object Identifier) is a unique identifier that identifies digital objects The object may change physical locations, but the DOI assigned to that object will never change Journal publishers often assign DOIs to electronic copies of individual articles in their journals
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