APA (7th ed.) Citation

Collier, R. (1948). The secret of the ages. The book of gold.

Chicago Style (17th ed.) Citation

Collier, Robert. The Secret of the Ages. 72 Orchard street: The book of gold, 1948.

MLA (9th ed.) Citation

Collier, Robert. The Secret of the Ages. The book of gold, 1948.

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