APA (7th ed.) Citation

Palma, R. P. (1989). Secrets of 120 year life-span. s.n.].

Chicago Style (17th ed.) Citation

Palma, Roman P. Secrets of 120 Year Life-span. [S.l: s.n.], 1989.

MLA (9th ed.) Citation

Palma, Roman P. Secrets of 120 Year Life-span. s.n.], 1989.