Brennan, John J.
(1992)
"[Book Review] The Medical Applications of Natural Family Planning, by Thomas W. Hilgers, M.D., Pope Paul VI Institute for the Study of Human Reproduction,"
The Linacre Quarterly: Vol. 59:
No.
3, Article 12.
Available at:
https://epublications.marquette.edu/lnq/vol59/iss3/12