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Plants of Hawai'i: DOI

What is a DOI?

Many publishers assign a Digital Object Identifiers (DOI) to their digital publications to provide links that are more stable than URLs (more info).

Both APA and MLA styles require the use of DOIs when they are available. In both citation styles the DOI typically falls at the end of the citation.

DOI Lookup

Don't know the DOI? Try the free DOI Lookup service from Crossref.org.

<a href="http://www.crossref.org/guestquery/">Use CrossRef's free DOI lookup service here.</a>
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