Cita APA (7a ed.)

Griffiths, A., & Wall, S. (1989). Applied economics: An introductory course (3rd ed.). Longman.

Cita Chicago Style (17a ed.)

Griffiths, Alan, y Stuart Wall. Applied Economics: An Introductory Course. 3rd ed. London [etc.]: Longman, 1989.

Cita MLA (9a ed.)

Griffiths, Alan, y Stuart Wall. Applied Economics: An Introductory Course. 3rd ed. Longman, 1989.