APA
Houghton Mifflin Company, . (1978). Focus On Literature America. U.S.A: Houghton Mifflin Company.
Chicago
Houghton Mifflin Company, . 1978. Focus On Literature America. U.S.A: Houghton Mifflin Company.
Harvard
Houghton Mifflin Company, . (1978). Focus On Literature America. U.S.A: Houghton Mifflin Company.
MLA
Houghton Mifflin Company, . Focus On Literature America. U.S.A: Houghton Mifflin Company. 1978.
