APA (7th ed.) Citation

Hamer, O. S. (1962). Exploring the Old World. Follett Publ.

Chicago Style (17th ed.) Citation

Hamer, O. Stuart. Exploring the Old World. Follett Publ, 1962.

MLA (8th ed.) Citation

Hamer, O. Stuart. Exploring the Old World. Follett Publ, 1962.

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