Paedophilia Information Exchange. (1978). Paedophilia: Some questions and answers / Paedophilia Information Exchange. PIE.
Chicago-Zitierstil (17. Ausg.)Paedophilia Information Exchange. Paedophilia: Some Questions and Answers / Paedophilia Information Exchange. London: PIE, 1978.
MLA-Zitierstil (8. Ausg.)Paedophilia Information Exchange. Paedophilia: Some Questions and Answers / Paedophilia Information Exchange. PIE, 1978.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.