APA (7th ed.) Citation

Douglas, M. T. (1949). The teacher-librarian's handbook (2nd ed.). American Library Association.

Chicago Style (17th ed.) Citation

Douglas, Mary Teresa. The Teacher-librarian's Handbook. 2nd ed. Chicago, Ill: American Library Association, 1949.

MLA (9th ed.) Citation

Douglas, Mary Teresa. The Teacher-librarian's Handbook. 2nd ed. American Library Association, 1949.