APA

De Bernardo M. A., Institute for a Drugs-Free Workplace, . (1992). Drug & alcohol abuse prevention and the ADA: an employer's guide. [Washington, D.C: Institute for a Drug Free Workplace].

Chicago

De Bernardo Mark A, Institute for a Drugs-Free Workplace, . 1992. Drug & alcohol abuse prevention and the ADA: an employer's guide. [Washington, D.C: Institute for a Drug Free Workplace].

Harvard

De Bernardo M. A., Institute for a Drugs-Free Workplace, . (1992). Drug & alcohol abuse prevention and the ADA: an employer's guide. [Washington, D.C: Institute for a Drug Free Workplace].

MLA

De Bernardo Mark A, Institute for a Drugs-Free Workplace, . Drug & alcohol abuse prevention and the ADA: an employer's guide. [Washington, D.C: Institute for a Drug Free Workplace]. 1992.