Cita APA (7th ed.)

Robinson, D., & Haas, E. (1978). Reflections (First edition.). Holt, Rinehart and Winston.

Cita Chicago (17th ed.)

Robinson, David, i Ernst Haas. Reflections. First edition. Canada: Holt, Rinehart and Winston, 1978.

Cita MLA (9th ed.)

Robinson, David, i Ernst Haas. Reflections. First edition. Holt, Rinehart and Winston, 1978.