एपीए उद्धरण

(1991). Biotech buyer's guide 1991: Instruments, equipment, biologiscals, supplies, reply cards. Washington.

शिकागो स्टाइल उद्धरण

Biotech Buyer's Guide 1991: Instruments, Equipment, Biologiscals, Supplies, Reply Cards. Washington, 1991.

एमएलए उद्धरण

Biotech Buyer's Guide 1991: Instruments, Equipment, Biologiscals, Supplies, Reply Cards. Washington, 1991.