APA aipamena

Ralphs , S. . .. (1955). Elementary quantity surveying (1.). Sir Isaac Pitman & Sons Ltd.

Chicago Style aipamena

Ralphs , Sydney. Elementary Quantity Surveying. 1. London: Sir Isaac Pitman & Sons Ltd, 1955.

MLA aipamena

Ralphs , Sydney. Elementary Quantity Surveying. 1. Sir Isaac Pitman & Sons Ltd, 1955.

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