APA aipamena

Ellis, A., & Harper, R. A. (1961). A Guide to rational living. Prentice-Hall.

Chicago Style aipamena

Ellis, Albert, and Robert Allan Harper. A Guide to Rational Living. Englewood Cliffs, N.J: Prentice-Hall, 1961.

MLA aipamena

Ellis, Albert, and Robert Allan Harper. A Guide to Rational Living. Prentice-Hall, 1961.