Cita APA

Shapiro, R. (1987). Origin: A skeptic's giude to the creation of life on earth. New York: Bantam.

Chicago Style Citation

Shapiro, Robert. Origin: A Skeptic's Giude to the Creation of Life On Earth. New York: Bantam, 1987.

Cita MLA

Shapiro, Robert. Origin: A Skeptic's Giude to the Creation of Life On Earth. New York: Bantam, 1987.

Atenció: Aquestes cites poden no estar 100% correctes.