Gaya APA

Zimmerman, A, F, (, , , , ). (1957). 'Overpopulation'. A study of Papal teachings on the problem, with special reference to Japan. . Washington: CUAP.

Gaya MLA

Zimmerman, Anthony, F., (1917-, , , , ). "'Overpopulation'. A study of Papal teachings on the problem, with special reference to Japan. ". Washington: CUAP, 1957. Buku.