Gaya APA

Swanson, C, P., ì, I, A, A, F, V, I, M, (. (1980). Planning fences . Georgia: Georgia: AAVIM; 1980.

Gaya MLA

Swanson, Carl, P.., ì, I., American, Association, For, Vocational, Instructional, Materials, (AAVIM). "Planning fences". Georgia: Georgia: AAVIM; 1980, 1980. Text.