APA (7th ed.) Citation

Knapp,Brian. (1996). The earth in space. Regency publishing group.

Chicago Style (17th ed.) Citation

Knapp,Brian. The Earth in Space. Australia: Regency publishing group, 1996.

MLA (9th ed.) Citation

Knapp,Brian. The Earth in Space. Regency publishing group, 1996.

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