APA-Zitierstil (7. Ausg.)

Crowe, B. (1983). The playgroup movement (4. ed. Rev. and up dated.). Unwin Paperbacks.

Chicago-Zitierstil (17. Ausg.)

Crowe, Brenda. The Playgroup Movement. 4. ed. Rev. and up dated. London u.a: Unwin Paperbacks, 1983.

MLA-Zitierstil (9. Ausg.)

Crowe, Brenda. The Playgroup Movement. 4. ed. Rev. and up dated. Unwin Paperbacks, 1983.