Παραπομπή APA

(1960). Earth manual: A guide to the use of soils as foundations and as construction materials for hydraulic structures. Denver, CO: Government Printing Office.

Παραπομπή Chicago Style

Earth Manual: A Guide to the Use of Soils As Foundations and As Construction Materials for Hydraulic Structures. Denver, CO: Government Printing Office, 1960.

Παραπομπή MLA

Earth Manual: A Guide to the Use of Soils As Foundations and As Construction Materials for Hydraulic Structures. Denver, CO: Government Printing Office, 1960.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.