Cita APA (7th ed.)

Whitney, F. L. (1950). The elements of research (3rd ed.). Prentice-Hall.

Cita Chicago (17th ed.)

Whitney, Frederick Lamson. The Elements of Research. 3rd ed. Englewood Cliffs, N. J: Prentice-Hall, 1950.

Cita MLA (9th ed.)

Whitney, Frederick Lamson. The Elements of Research. 3rd ed. Prentice-Hall, 1950.