Cita APA

Pence, R. W. (1963). A grammer of present day english (2a. ed.). New York: MacMillan.

Citación estilo Chicago

Pence, R. W. A Grammer of Present Day English. 2a. ed. New York: MacMillan, 1963.

Cita MLA

Pence, R. W. A Grammer of Present Day English. 2a. ed. New York: MacMillan, 1963.