Gaya APA

Barber, C, V. et al (1994). Breaking The Logjam : Obstacles to Forest Policy Reform in Indonesia and the united states . Washiogton ,C 20006: World Resouces Institute.

Gaya MLA

Barber, Charles, Victor. et al. "Breaking The Logjam : Obstacles to Forest Policy Reform in Indonesia and the united states". Washiogton ,C 20006: World Resouces Institute, 1994. Text.