APA (7 ম সংস্করণ) উদ্ধৃতি

RIGGS, J. L. (1969). Guide To Cost Reduction Thrugh Critical Path Scheduling James L. Riggs And Charles O. Heath. Prentice-Hall Inc.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

RIGGS, James L. Guide To Cost Reduction Thrugh Critical Path Scheduling James L. Riggs And Charles O. Heath. Prentice-Hall Inc, 1969.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

RIGGS, James L. Guide To Cost Reduction Thrugh Critical Path Scheduling James L. Riggs And Charles O. Heath. Prentice-Hall Inc, 1969.