APA
Noren A., Persson A., . (1997). Graded quality of 30-year-old Norway spruce grown on agricultural and forest land. : .
Chicago
Noren Anna, Persson Anders, . 1997. Graded quality of 30-year-old Norway spruce grown on agricultural and forest land. : .
Harvard
Noren A., Persson A., . (1997). Graded quality of 30-year-old Norway spruce grown on agricultural and forest land. : .
MLA
Noren Anna, Persson Anders, . Graded quality of 30-year-old Norway spruce grown on agricultural and forest land. : . 1997.