Cita APA (7th ed.)

Havighurst, R. J. (1972). Development tasks and education (3rd ed.). David McKay Company, Inc..

Cita Chicago (17th ed.)

Havighurst, Robert James. Development Tasks and Education. 3rd ed. New york: David McKay Company, Inc., 1972.

Cita MLA (8th ed.)

Havighurst, Robert James. Development Tasks and Education. 3rd ed. David McKay Company, Inc., 1972.