Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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