APA

Jolles R. L., . (1993). How to run seminars and workshops: presentation skills for consultants, trainers, and teachers. New York: John Wiley & Sons.

Chicago

Jolles Robert L, . 1993. How to run seminars and workshops: presentation skills for consultants, trainers, and teachers. New York: John Wiley & Sons.

Harvard

Jolles R. L., . (1993). How to run seminars and workshops: presentation skills for consultants, trainers, and teachers. New York: John Wiley & Sons.

MLA

Jolles Robert L, . How to run seminars and workshops: presentation skills for consultants, trainers, and teachers. New York: John Wiley & Sons. 1993.