APA (7th ed.) Citation

Gubbels, J. L. (1938). American highways and roadsides. Houghton Mifflin company.

Chicago Style (17th ed.) Citation

Gubbels, Jac L. American Highways and Roadsides. Boston: Houghton Mifflin company, 1938.

MLA (9th ed.) Citation

Gubbels, Jac L. American Highways and Roadsides. Houghton Mifflin company, 1938.