Powell's electric supply share handboek, 1932.

MLA

Powell, L. Powell's Electric Supply Share Handboek, 1932. s.l, 1932.

APA

Powell, L. (1932). Powell's electric supply share handboek, 1932. s.l.

Chicago

Powell, L. Powell's Electric Supply Share Handboek, 1932. s.l., 1932.