Cita APA (7a ed.)
Cowling, T., & Steeley, G. (1974). Sub-regional planning studies: An evaluation. Pergamon.
Cita estilo Chicago (17a ed.)
Cowling, T.M, y G.C Steeley. Sub-regional Planning Studies: An Evaluation. Oxford, EUA: Pergamon, 1974.
Cita MLA (9a ed.)
Cowling, T.M, y G.C Steeley. Sub-regional Planning Studies: An Evaluation. Pergamon, 1974.
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