Sloan, J. P. (1991). Ponderosa and lodgepole pine seedling bud burst varies with lift date and cultural practices in Idaho nursery. Intermountain Research Station.
Citazione stile Chigago Style (17a edizione)Sloan, John P. Ponderosa and Lodgepole Pine Seedling Bud Burst Varies with Lift Date and Cultural Practices in Idaho Nursery. Ogden, Utah, USA: Intermountain Research Station, 1991.
Citatione MLA (9a ed.)Sloan, John P. Ponderosa and Lodgepole Pine Seedling Bud Burst Varies with Lift Date and Cultural Practices in Idaho Nursery. Intermountain Research Station, 1991.
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