GOPALAKRISHANAN P. (1992). COST REDUCTION HAND BOOK. JAICO PUBLISHING HOUSE.
Čikaški stil citiranja (17. izdanje)GOPALAKRISHANAN P. COST REDUCTION HAND BOOK. MUMBAI: JAICO PUBLISHING HOUSE, 1992.
MLA način citiranja (9. izdanje)GOPALAKRISHANAN P. COST REDUCTION HAND BOOK. JAICO PUBLISHING HOUSE, 1992.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.