Peltola, H., Gort, J., Pulkkinen, P., Zubizarreta Gerendiain, A., Karppinen, J., & Ikonen, V. (2009). Differences in growth and wood density traits in Scots pine (Pinus sylvestris L.) genetic entries grown at different spacing and sites. Finnish Society of Forest Science.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Peltola, Heli, Jaume Gort, Pertti Pulkkinen, Ane Zubizarreta Gerendiain, Jouni Karppinen, و Veli-Pekka Ikonen. Differences in Growth and Wood Density Traits in Scots Pine (Pinus Sylvestris L.) Genetic Entries Grown at Different Spacing and Sites. Finnish Society of Forest Science, 2009.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Peltola, Heli, et al. Differences in Growth and Wood Density Traits in Scots Pine (Pinus Sylvestris L.) Genetic Entries Grown at Different Spacing and Sites. Finnish Society of Forest Science, 2009.