APA (7th ed.) Citation

National Council of Teachers of English. Committee on Reading Ladders for Human Relations, Reid, V. M., & Crosby, M. E. (1972). Reading ladders for human relations (5th ed.). American Council on Education.

Chicago Style (17th ed.) Citation

National Council of Teachers of English. Committee on Reading Ladders for Human Relations, Virginia M. Reid, and Muriel Estelle Crosby. Reading Ladders for Human Relations. 5th ed. Washington: American Council on Education, 1972.

MLA (9th ed.) Citation

National Council of Teachers of English. Committee on Reading Ladders for Human Relations, et al. Reading Ladders for Human Relations. 5th ed. American Council on Education, 1972.