APA
Thonssen L., Gilkinson H., . (1947). Basic training in speech. Boston: D.C. Heath and Company.
Chicago
Thonssen Lester, Gilkinson Howard, . 1947. Basic training in speech. Boston: D.C. Heath and Company.
Harvard
Thonssen L., Gilkinson H., . (1947). Basic training in speech. Boston: D.C. Heath and Company.
MLA
Thonssen Lester, Gilkinson Howard, . Basic training in speech. Boston: D.C. Heath and Company. 1947.