APA
Griffiths P., Winfield R. & Nottingham Polytechnic. (1991). Building engineering services: a practice manual for quantity surveyors. Volume three: contrct administration. Nottingham: Notingham Polytechnic.
Chicago
Griffiths P.A, Winfield Roger and Nottingham Polytechnic. 1991. Building engineering services: a practice manual for quantity surveyors. Volume three: contrct administration. Nottingham: Notingham Polytechnic.
Harvard
Griffiths P., Winfield R. and Nottingham Polytechnic. (1991). Building engineering services: a practice manual for quantity surveyors. Volume three: contrct administration. Nottingham: Notingham Polytechnic.
MLA
Griffiths P.A, Winfield Roger and Nottingham Polytechnic. Building engineering services: a practice manual for quantity surveyors. Volume three: contrct administration. Nottingham: Notingham Polytechnic. 1991.