APA (7th ed.) Citation

Button, E. G. (1920). Freight rates on construction materials. Engineering & Contracting., 54, 338.

Chicago Style (17th ed.) Citation

Button, E. G. "Freight Rates on Construction Materials." Engineering & Contracting. 54 (1920): 338.

MLA (9th ed.) Citation

Button, E. G. "Freight Rates on Construction Materials." Engineering & Contracting., vol. 54, 1920, p. 338.

Warning: These citations may not always be 100% accurate.