एपीए उद्धरण

SBP Board of consultants and engineers. Rubber technology and manufacture. Small Business Publications.

शिकागो स्टाइल उद्धरण

SBP Board of consultants and engineers. Rubber Technology and Manufacture. Delhi: Small Business Publications.

एमएलए उद्धरण

SBP Board of consultants and engineers. Rubber Technology and Manufacture. Small Business Publications.