MLA

Boughton, B.W, and P.J Balhard. Construction Mathematics; Volume 1. [S.l.]: Granada, .

APA

Boughton, B., & Balhard, P. (.). Construction mathematics; volume 1. [S.l.]: Granada.

Chicago

Boughton, B.W., and P.J Balhard. Construction Mathematics; Volume 1. [S.l.]: Granada, ..