APA

Gregg J. R., . (1962). Applied secretarial practice. New York: Gregg Division, McGraw-Hill.

Chicago

Gregg John Robert, . 1962. Applied secretarial practice. New York: Gregg Division, McGraw-Hill.

Harvard

Gregg J. R., . (1962). Applied secretarial practice. New York: Gregg Division, McGraw-Hill.

MLA

Gregg John Robert, . Applied secretarial practice. New York: Gregg Division, McGraw-Hill. 1962.