Capper, P. L., & Cassie Fisher, W. G. (1980). Problems in Engineering Soil (3rd ed.). E & F. N Spon.
Παραπομπή Chicago StyleCapper, P Leonard, και W Geddes Cassie Fisher. Problems in Engineering Soil. 3rd ed. London: E & F. N Spon, 1980.
Παραπομπή MLACapper, P Leonard, και W Geddes Cassie Fisher. Problems in Engineering Soil. 3rd ed. E & F. N Spon, 1980.
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