APA (7th ed.) Citation

Sumulong, L. (1960). World understanding and world peace. s.n.].

Chicago Style (17th ed.) Citation

Sumulong, Lorenzo. World Understanding and World Peace. [S.l: s.n.], 1960.

MLA (9th ed.) Citation

Sumulong, Lorenzo. World Understanding and World Peace. s.n.], 1960.

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