Heyman, D. (1979). Help with sexual problems: A practical guide to counselling and advice services in London for young people and those who work with them. National Youth Bureau.
Chicago-Zitierstil (17. Ausg.)Heyman, David. Help with Sexual Problems: A Practical Guide to Counselling and Advice Services in London for Young People and Those Who Work with Them. Leicester: National Youth Bureau, 1979.
MLA-Zitierstil (8. Ausg.)Heyman, David. Help with Sexual Problems: A Practical Guide to Counselling and Advice Services in London for Young People and Those Who Work with Them. National Youth Bureau, 1979.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.