APA
SPB Board of Consultants & Engineers, SPB Board of Consultants & Engineers, . (19). Dye & dye-intermediates. New Delhi: Small Business Publications.
Chicago
SPB Board of Consultants & Engineers, SPB Board of Consultants & Engineers, . 19. Dye & dye-intermediates. New Delhi: Small Business Publications.
Harvard
SPB Board of Consultants & Engineers, SPB Board of Consultants & Engineers, . (19). Dye & dye-intermediates. New Delhi: Small Business Publications.
MLA
SPB Board of Consultants & Engineers, SPB Board of Consultants & Engineers, . Dye & dye-intermediates. New Delhi: Small Business Publications. 19.