APA-viite (7. p.)

De Cresce, R. P. (1989). Drug testing in the workplace. ASCP Press, American Society of Pathologists.

Chicago-viite (17. p.)

De Cresce, Robert P. Drug Testing in the Workplace. Chicago: ASCP Press, American Society of Pathologists, 1989.

MLA-viite (9. p.)

De Cresce, Robert P. Drug Testing in the Workplace. ASCP Press, American Society of Pathologists, 1989.