Sloan, J. P. (1991). Ponderosa and lodgepole pine seedling bud burst varies with lift date and cultural practices in Idaho nursery. Intermountain Research Station.
Citace podle Chicago (17th ed.)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.
Citace podle MLA (9th 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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