APA
Flower J. G., Olsson L., . (1993). Estimation of volume, total and projected area of Scots pine needles from their regression on length. : .
Chicago
Flower Jeremy G.K, Olsson Leif, . 1993. Estimation of volume, total and projected area of Scots pine needles from their regression on length. : .
Harvard
Flower J. G., Olsson L., . (1993). Estimation of volume, total and projected area of Scots pine needles from their regression on length. : .
MLA
Flower Jeremy G.K, Olsson Leif, . Estimation of volume, total and projected area of Scots pine needles from their regression on length. : . 1993.