Cita APA (7a ed.)
Wonnacott, R. (2005). The African Geodetic Reference Frame (AFREF) project. Technical Centre for Agricultural and Rural Cooperation.
Cita Chicago Style (17a ed.)
Wonnacott, Richard. The African Geodetic Reference Frame (AFREF) Project. Technical Centre for Agricultural and Rural Cooperation, 2005.
Cita MLA (9a ed.)
Wonnacott, Richard. The African Geodetic Reference Frame (AFREF) Project. Technical Centre for Agricultural and Rural Cooperation, 2005.
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