Cita APA (7th ed.)

Knowles, M. S. (1984). The adult learner: A neglected species (3rd ed.). Gulf Pub.

Cita Chicago (17th ed.)

Knowles, Malcolm Shepherd. The Adult Learner: A Neglected Species. 3rd ed. Houston: Gulf Pub, 1984.

Cita MLA (9th ed.)

Knowles, Malcolm Shepherd. The Adult Learner: A Neglected Species. 3rd ed. Gulf Pub, 1984.