GOPALAKRISHNAN, P., & SUNDARESAN, M. (2005). Materials management: An integrated approach. Prentice-Hall of India.
Lua i Stíl Chicago (17ú heag.)GOPALAKRISHNAN, P., agus M. SUNDARESAN. Materials Management: An Integrated Approach. New Delhi: Prentice-Hall of India, 2005.
Lua MLA (9ú heag.)GOPALAKRISHNAN, P., agus M. SUNDARESAN. Materials Management: An Integrated Approach. Prentice-Hall of India, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.