Toyne, P., & Newby, P. T. (1986). Techniques in human geography. Macmillan Education.
Cita Chicago (17th ed.)Toyne, Peter, i Peter T. Newby. Techniques in Human Geography. Londres: Macmillan Education, 1986.
Cita MLA (9th ed.)Toyne, Peter, i Peter T. Newby. Techniques in Human Geography. Macmillan Education, 1986.
Atenció: Aquestes cites poden no estar 100% correctes.