Dyfyniad APA

Summers, H. B. 1. c., & Summers, R. E. 1. j. c. (1939). The railroad problem, with refernce to government ownership. Wilson.

Dyfyniad Arddull Chicago

Summers, Harrison Boyd 1894- comp, and Robert Edward 1918- joint comp Summers. The Railroad Problem, with Refernce to Government Ownership. New York: Wilson, 1939.

Dyfyniad MLA

Summers, Harrison Boyd 1894- comp, and Robert Edward 1918- joint comp Summers. The Railroad Problem, with Refernce to Government Ownership. Wilson, 1939.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.