Knowles, R. (1981). Economic and Social Geography (Fourth Edition). ELSEVIER.
Citación estilo ChicagoKnowles, R. Economic and Social Geography (Fourth Edition). ELSEVIER, 1981.
Cita MLAKnowles, R. Economic and Social Geography (Fourth Edition). ELSEVIER, 1981.
Warning: These citations may not always be 100% accurate.