APA

United States, . (1981). A guide to instructional resources for consumers' education. [Washington, D.C: .

Chicago

United States, . 1981. A guide to instructional resources for consumers' education. [Washington, D.C: .

Harvard

United States, . (1981). A guide to instructional resources for consumers' education. [Washington, D.C: .

MLA

United States, . A guide to instructional resources for consumers' education. [Washington, D.C: . 1981.