COMMISSIONER OF INTERNAL REVENUE v. P. G. LAKE, INC.. The Oyez Project at IIT Chicago-Kent College of Law. 26 April 2013. <http://www.oyez.org/cases/1950-1959/1957/1957_108>.
COMMISSIONER OF INTERNAL REVENUE v. P. G. LAKE, INC., The Oyez Project at IIT Chicago-Kent College of Law, http://www.oyez.org/cases/1950-1959/1957/1957_108 (last visited April 26, 2013).
"COMMISSIONER OF INTERNAL REVENUE v. P. G. LAKE, INC.," The Oyez Project at IIT Chicago-Kent College of Law, accessed April 26, 2013, http://www.oyez.org/cases/1950-1959/1957/1957_108.