APA (7th ed.) Citation

Leifer. (1968). The Philippine claim to Sabah. Inter Documentation.

Chicago Style (17th ed.) Citation

Leifer. The Philippine Claim to Sabah. Zug: Inter Documentation, 1968.

MLA (8th ed.) Citation

Leifer. The Philippine Claim to Sabah. Inter Documentation, 1968.

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