Text

Wolfram Research (2020), $ExternalIdentifierTypes, Wolfram Language function, https://reference.wolfram.com/language/ref/$ExternalIdentifierTypes.html.

CMS

Wolfram Language. 2020. "$ExternalIdentifierTypes." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/$ExternalIdentifierTypes.html.

APA

Wolfram Language. (2020). $ExternalIdentifierTypes. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/$ExternalIdentifierTypes.html

BibTeX

@misc{reference.wolfram_2025_$externalidentifiertypes, author="Wolfram Research", title="{$ExternalIdentifierTypes}", year="2020", howpublished="\url{https://reference.wolfram.com/language/ref/$ExternalIdentifierTypes.html}", note=[Accessed: 13-August-2025]}

BibLaTeX

@online{reference.wolfram_2025_$externalidentifiertypes, organization={Wolfram Research}, title={$ExternalIdentifierTypes}, year={2020}, url={https://reference.wolfram.com/language/ref/$ExternalIdentifierTypes.html}, note=[Accessed: 13-August-2025]}