APA

Hoffman L., . (1981). Foundations of family therapy: a conceptual framework for systems change. New York: Basic Books.

Chicago

Hoffman Lynn, . 1981. Foundations of family therapy: a conceptual framework for systems change. New York: Basic Books.

Harvard

Hoffman L., . (1981). Foundations of family therapy: a conceptual framework for systems change. New York: Basic Books.

MLA

Hoffman Lynn, . Foundations of family therapy: a conceptual framework for systems change. New York: Basic Books. 1981.