Dyfyniad APA

Singh, G., & Singh, J. (1993). Estimating costing and valuation. Standard Publishers Distributors.

Dyfyniad Arddull Chicago

Singh, Gurcharan, and Jagdish Singh. Estimating Costing and Valuation. India: Standard Publishers Distributors, 1993.

Dyfyniad MLA

Singh, Gurcharan, and Jagdish Singh. Estimating Costing and Valuation. Standard Publishers Distributors, 1993.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.