Cita APA

(1980). Books in print 1980-81. R.R. Bowker Company.

Chicago Edition Citation

Books in Print 1980-81. New York: R.R. Bowker Company, 1980.

Cita MLA

Books in Print 1980-81. R.R. Bowker Company, 1980.

Atenció: Aquestes cites poden no estar 100% correctes.