Singh, G., & Singh, J. (1993). Estimating costing and valuation. Standard Publishers Distributors.
芝加哥风格引文Singh, Gurcharan, 与 Jagdish Singh. Estimating Costing and Valuation. India: Standard Publishers Distributors, 1993.
MLA引文Singh, Gurcharan, 与 Jagdish Singh. Estimating Costing and Valuation. Standard Publishers Distributors, 1993.
警告：这些引文格式不一定是100％准确.