APA

Schubert L., . (1948). A guide for oral communication. New York: Prentice-Hall.

Chicago

Schubert Leland, . 1948. A guide for oral communication. New York: Prentice-Hall.

Harvard

Schubert L., . (1948). A guide for oral communication. New York: Prentice-Hall.

MLA

Schubert Leland, . A guide for oral communication. New York: Prentice-Hall. 1948.