APA Style

GRAY, E, W, L, A, C, F. (2011). PROJECT MANAGEMENT THE MANAGERIAL PROCESS (5th Edition). USA: McGraw Hill Higher Education.

MLA Style

GRAY, ERIK, W., LARSON, AND, CLIFFORD, F.. "PROJECT MANAGEMENT THE MANAGERIAL PROCESS". 5th Edition USA: McGraw Hill Higher Education, 2011. Management.