APA
Mencken, . (1990). The American Language. New Yok: Alfred A. Knopf.
Chicago
Mencken, . 1990. The American Language. New Yok: Alfred A. Knopf.
Harvard
Mencken, . (1990). The American Language. New Yok: Alfred A. Knopf.
MLA
Mencken, . The American Language. New Yok: Alfred A. Knopf. 1990.