APA

McDonald G., . (1942). Educational motion pictures and libraries. Chicago,A.L.A: .

Chicago

McDonald G.D, . 1942. Educational motion pictures and libraries. Chicago,A.L.A: .

Harvard

McDonald G., . (1942). Educational motion pictures and libraries. Chicago,A.L.A: .

MLA

McDonald G.D, . Educational motion pictures and libraries. Chicago,A.L.A: . 1942.