Citazione Stile APA (7a Edizione)

Pickles, T., & Mackay, J. (1961). The world at work: An introduction to social and economic geography. Murray.

Citazione stile Chigago Style (17a edizione)

Pickles, Thomas, e John Mackay. The World at Work: An Introduction to Social and Economic Geography. London: Murray, 1961.

Citatione MLA (9a ed.)

Pickles, Thomas, e John Mackay. The World at Work: An Introduction to Social and Economic Geography. Murray, 1961.