Citação norma APA

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

Citação norma Chicago

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

Citação norma MLA

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

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.