Activities, constitution, and by-laws of the Pennsylvania chapter of the Society of the Sigma Xi

MLA

University of Pennsylvania. Activities, constitution, and by-laws of the Pennsylvania chapter of the Society of the Sigma Xi. [Philadelphia], [publisher not identified], 1925.

APA

University of Pennsylvania. (1925). Activities, constitution, and by-laws of the Pennsylvania chapter of the Society of the Sigma Xi. [Philadelphia], [publisher not identified].

Chicago

University of Pennsylvania. Activities, constitution, and by-laws of the Pennsylvania chapter of the Society of the Sigma Xi. [Philadelphia], [publisher not identified], 1925.