Wennstrom, U. (2001). Direct seeding of Pinus sylvestris (L.) in the boreal forest using orchard or stand seed.
Čikaški stil citiranja (17. izdanje)Wennstrom, Ulfstand. Direct Seeding of Pinus Sylvestris (L.) in the Boreal Forest Using Orchard or Stand Seed. 2001.
MLA način citiranja (8. izdanje)Wennstrom, Ulfstand. Direct Seeding of Pinus Sylvestris (L.) in the Boreal Forest Using Orchard or Stand Seed. 2001.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.