APA

U.S. National Center for Educational Research and Development, Witherspoon J. P., . (1969). Instructional television facilities: a planning guide. Washington: U.S. Office of Education for sale by the Supt. of Docs., U.S. Govt. Print. Off.

Chicago

U.S. National Center for Educational Research and Development, Witherspoon John P, . 1969. Instructional television facilities: a planning guide. Washington: U.S. Office of Education for sale by the Supt. of Docs., U.S. Govt. Print. Off.

Harvard

U.S. National Center for Educational Research and Development, Witherspoon J. P., . (1969). Instructional television facilities: a planning guide. Washington: U.S. Office of Education for sale by the Supt. of Docs., U.S. Govt. Print. Off.

MLA

U.S. National Center for Educational Research and Development, Witherspoon John P, . Instructional television facilities: a planning guide. Washington: U.S. Office of Education for sale by the Supt. of Docs., U.S. Govt. Print. Off. 1969.