APA
Roy S R,, . (1999). Commentaries on customs act. Vol.I. Calcutta: Kamal Law House.
Chicago
Roy S R,, . 1999. Commentaries on customs act. Vol.I. Calcutta: Kamal Law House.
Harvard
Roy S R,, . (1999). Commentaries on customs act. Vol.I. Calcutta: Kamal Law House.
MLA
Roy S R,, . Commentaries on customs act. Vol.I. Calcutta: Kamal Law House. 1999.