APA ציטוט

Porter, P. W. (1956). Population distribution and land use in Liberia. University of London.

Chicago Style (17th ed.) Citation

Porter, Philip Wayland. Population Distribution and Land Use in Liberia. University of London, 1956.

ציטוט MLA

Porter, Philip Wayland. Population Distribution and Land Use in Liberia. University of London, 1956.