Gaya APA

FLEMING, D, K. (1989). Identification of the shipping district in New York, Houston and Seattle: 1956 and 1987 (Volume 20 Number 4). USA: Pergamon.

Gaya MLA

FLEMING, DOUGLAS, K.. "Identification of the shipping district in New York, Houston and Seattle: 1956 and 1987". Volume 20 Number 4 USA: Pergamon, 1989. Article.