Gaya APA

Holtzman, S, H., Leich, C. (1981). Wittgens : to fallow a rule . London: Routledge \\r\\nKegan Paul.

Gaya MLA

Holtzman, Steven, H.., Leich, Christopher. "Wittgens : to fallow a rule". London: Routledge \\r\\nKegan Paul, 1981. Text.