Cita APA (7th ed.)

Speak, P., & Carter, A. H. C. (1981). Map reading and interpretation (New edition.). Longman.

Cita Chicago (17th ed.)

Speak, P., i A. H. C. Carter. Map Reading and Interpretation. New edition. England: Longman, 1981.

Cita MLA (9th ed.)

Speak, P., i A. H. C. Carter. Map Reading and Interpretation. New edition. Longman, 1981.

Atenció: Aquestes cites poden no estar 100% correctes.