Gaya APA

Touber, L. et al (1989). Technical Series Tropenbos ; Inventory and evaluation of tropical forest land guiddelines for common methodology . Nederland: The Tropnbos Fndation.

Gaya MLA

Touber, L.. et al. "Technical Series Tropenbos ; Inventory and evaluation of tropical forest land guiddelines for common methodology". Nederland: The Tropnbos Fndation, 1989. Text.