Cita APA (7th ed.)

(1963). Natural philosopher. Blaisdell Publ..

Cita Chicago (17th ed.)

Natural Philosopher. New York [u.a.]: Blaisdell Publ., 1963.

Cita MLA (8th ed.)

Natural Philosopher. Blaisdell Publ., 1963.

Atenció: Aquestes cites poden no estar 100% correctes.