APA (7th ed.) Citation

Birney, B. G., & Hollings, H. (2018). The world according to humphrey (Unabridged.). Listening Library.

Chicago Style (17th ed.) Citation

Birney, Betty G., and Hal Hollings. The World According to Humphrey. Unabridged. New York: Listening Library, 2018.

MLA (8th ed.) Citation

Birney, Betty G., and Hal Hollings. The World According to Humphrey. Unabridged. Listening Library, 2018.

Warning: These citations may not always be 100% accurate.