Citazione Stile APA (7a Edizione)

(Author), J. J. G. (1997). Contractors in forest harvesting and silviculture: Oregon and the United States. International Labour Organization.

Citazione stile Chigago Style (17a edizione)

(Author), John J. Garland. Contractors in Forest Harvesting and Silviculture: Oregon and the United States. International Labour Organization, 1997.

Citatione MLA (9a ed.)

(Author), John J. Garland. Contractors in Forest Harvesting and Silviculture: Oregon and the United States. International Labour Organization, 1997.