Citazione Stile APA (7a Edizione)

Smith, E. A. (1990). The productivity manual: Methods and activities for involving employees in productivity improvement. Gulf Pub. Co..

Citazione stile Chigago Style (17a edizione)

Smith, Elizabeth A. The Productivity Manual: Methods and Activities for Involving Employees in Productivity Improvement. Houston: Gulf Pub. Co., 1990.

Citatione MLA (8a ed.)

Smith, Elizabeth A. The Productivity Manual: Methods and Activities for Involving Employees in Productivity Improvement. Gulf Pub. Co., 1990.