APA način citiranja (7. izdanje)

SHARMA O.P. (1977). RAILWAYS,BRIDGES &TONNELS. KATSON PUB.HOUSE.

Čikaški stil citiranja (17. izdanje)

SHARMA O.P. RAILWAYS,BRIDGES &TONNELS. LUDHIANA: KATSON PUB.HOUSE, 1977.

MLA način citiranja (9. izdanje)

SHARMA O.P. RAILWAYS,BRIDGES &TONNELS. KATSON PUB.HOUSE, 1977.