テキスト

Wolfram Research (1996), $TopDirectory, Wolfram言語関数， https://reference.wolfram.com/language/ref/$TopDirectory.html （2002年に更新）.

CMS

Wolfram Language. 1996. "$TopDirectory." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2002. https://reference.wolfram.com/language/ref/$TopDirectory.html.

APA

Wolfram Language. (1996). $TopDirectory. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/$TopDirectory.html

BibTeX

@misc{reference.wolfram_2026_$topdirectory, author="Wolfram Research", title="{$TopDirectory}", year="2002", howpublished="\url{https://reference.wolfram.com/language/ref/$TopDirectory.html}", note=[Accessed: 07-August-2026]}

BibLaTeX

@online{reference.wolfram_2026_$topdirectory, organization={Wolfram Research}, title={$TopDirectory}, year={2002}, url={https://reference.wolfram.com/language/ref/$TopDirectory.html}, note=[Accessed: 07-August-2026]}