テキスト

Wolfram Research (2007), A4, Wolfram言語関数， https://reference.wolfram.com/language/Music/ref/A4.html.

CMS

Wolfram Language. 2007. "A4." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/Music/ref/A4.html.

APA

Wolfram Language. (2007). A4. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/Music/ref/A4.html

BibTeX

@misc{reference.wolfram_2026_a4, author="Wolfram Research", title="{A4}", year="2007", howpublished="\url{https://reference.wolfram.com/language/Music/ref/A4.html}", note=[Accessed: 09-August-2026]}

BibLaTeX

@online{reference.wolfram_2026_a4, organization={Wolfram Research}, title={A4}, year={2007}, url={https://reference.wolfram.com/language/Music/ref/A4.html}, note=[Accessed: 09-August-2026]}