Gaya APA

(ed), C, M, T. (1970). Principles of human knowledge a treatise concerning the principles of human knowledge/ George Berkeley with critical essays . : bobbs merrill co.

Gaya MLA

(ed), Colin, Murray, Turbayne. "Principles of human knowledge a treatise concerning the principles of human knowledge/ George Berkeley with critical essays". : bobbs merrill co, 1970. Text.