APA (7th ed.) Citation

Grupp, G. W. (1924). Economics of motor transportation. D. Appleton and company.

Chicago Style (17th ed.) Citation

Grupp, George W. Economics of Motor Transportation. New York, ; London,: D. Appleton and company, 1924.

MLA (8th ed.) Citation

Grupp, George W. Economics of Motor Transportation. D. Appleton and company, 1924.

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