APA aipamena

Thuesen, H. G., Fabrycky, W. J., & Thuesen, G. J. (1975). Engineering economy. PHI.

Chicago Style aipamena

Thuesen, H G., W J. Fabrycky, and G J. Thuesen. Engineering Economy. New Delhi: PHI, 1975.

MLA aipamena

Thuesen, H G., et al. Engineering Economy. PHI, 1975.