APA-referens (7:e uppl.)

GUPTA S S. (2006). SERVICE TAX: HOW TO MEET YOUR OBLIGATIONS (20TH.). TAXMANN.

Chicago-referens (17:e uppl.)

GUPTA S S. SERVICE TAX: HOW TO MEET YOUR OBLIGATIONS. 20TH. NEW DELHI: TAXMANN, 2006.

MLA-referens (9:e uppl.)

GUPTA S S. SERVICE TAX: HOW TO MEET YOUR OBLIGATIONS. 20TH. TAXMANN, 2006.