APA

Sand P. A., Sand P. A. & Sand P. A. (1986). Pascal. Hamburg [u.a.]: MacGraw-Hill.

Chicago

Sand Paul A, Sand Paul A and Sand Paul A. 1986. Pascal. Hamburg [u.a.]: MacGraw-Hill.

Harvard

Sand P. A., Sand P. A. and Sand P. A. (1986). Pascal. Hamburg [u.a.]: MacGraw-Hill.

MLA

Sand Paul A, Sand Paul A and Sand Paul A. Pascal. Hamburg [u.a.]: MacGraw-Hill. 1986.