APA (7th ed.) Citation

Daly, R. (1972). Earth's most challenging mysteries. Baker Book House.

Chicago Style (17th ed.) Citation

Daly, Reginald. Earth's Most Challenging Mysteries. Baker Book House, 1972.

MLA (9th ed.) Citation

Daly, Reginald. Earth's Most Challenging Mysteries. Baker Book House, 1972.

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