Παραπομπή APA

Krouwel, B. (1999). Outdoor training: A source book of activites for management trainers. Viva Books.

Παραπομπή Chicago Style

Krouwel, Bill. Outdoor Training: A Source Book of Activites for Management Trainers. New Delhi: Viva Books, 1999.

Παραπομπή MLA

Krouwel, Bill. Outdoor Training: A Source Book of Activites for Management Trainers. Viva Books, 1999.