APA (7th ed.) Citation

Knapp, B. (1996). How the earth works (Volume 19.). Regency Publishing.

Chicago Style (17th ed.) Citation

Knapp, Brian. How the Earth Works. Volume 19. Australia: Regency Publishing, 1996.

MLA (9th ed.) Citation

Knapp, Brian. How the Earth Works. Volume 19. Regency Publishing, 1996.

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