TOYNE, P., & NEWBY, P. T. (1985). Techniques in human geography. Macmillan Education.
Chicago Style aipamenaTOYNE, Peter, and Peter T. NEWBY. Techniques in Human Geography. Houndmills: Macmillan Education, 1985.
MLA aipamenaTOYNE, Peter, and Peter T. NEWBY. Techniques in Human Geography. Macmillan Education, 1985.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.