APA Style

Geist, A. et al (1994). PVM (Parallel Virtual Machine); A Users' Guide and Tutorial for Network Parallel Computing . Cambridge, Massachusetts; USA: Massachusetts Institute of Technology Press.

MLA Style

Geist, Al. et al. "PVM (Parallel Virtual Machine); A Users' Guide and Tutorial for Network Parallel Computing". Cambridge, Massachusetts; USA: Massachusetts Institute of Technology Press, 1994. Text.