C. W. · J C · J. W. · Willke J. C.
| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Abortion: Questions and Answers | 978-0-318-35165-0 | 1990 | |
| Manual sobre el aborto | 978-84-313-0384-6 | 1983 | Mrs. Willke |
| Sex education, the how-to for teachers | 978-0-910728-03-4 | 1970 | |
| The wonder of sex, how to teach children: A guide for parents and teachers | 978-0-8010-9534-4 | 1973 | |
Baker Book House · EUNSA. EDICIONES UNIVERSIDAD DE NAVARRA, S.A. · Hayes Publishing Company · UMI Books on Demand