Παραπομπή APA

Powell, S. T. (1954). Water conditioning for industry. McGraw-Hill Book Company.

Παραπομπή Chicago Style

Powell, Sheppard T. Water Conditioning for Industry. N.Y: McGraw-Hill Book Company, 1954.

Παραπομπή MLA

Powell, Sheppard T. Water Conditioning for Industry. McGraw-Hill Book Company, 1954.