Gaya APA
Kaiser, R, B. (1987).
The Encyclical that never was, the story of the Commission on Population, Family and Birth, 1964-1966, rev.ed. Cet.pertama 1985. .
London:
Sheed & Ward.
Gaya MLA
Kaiser, Robert, Blair..
"The Encyclical that never was, the story of the Commission on Population, Family and Birth, 1964-1966, rev.ed. Cet.pertama 1985. ".
London:
Sheed & Ward,
1987.
Buku.