(1972). A survey of research in geography: A project. Popular Prakashan.
Cita Chicago (17th ed.)A Survey of Research in Geography: A Project. Bombay: Popular Prakashan, 1972.
Cita MLA (9th ed.)A Survey of Research in Geography: A Project. Popular Prakashan, 1972.
Atenció: Aquestes cites poden no estar 100% correctes.