APA

Gitterman A., Shulman L., . (1986). Mutual aid groups and the life cycle. Itasca, Ill: F.E. Peacock Publishers.

Chicago

Gitterman Alex, Shulman Lawrence, . 1986. Mutual aid groups and the life cycle. Itasca, Ill: F.E. Peacock Publishers.

Harvard

Gitterman A., Shulman L., . (1986). Mutual aid groups and the life cycle. Itasca, Ill: F.E. Peacock Publishers.

MLA

Gitterman Alex, Shulman Lawrence, . Mutual aid groups and the life cycle. Itasca, Ill: F.E. Peacock Publishers. 1986.