Cita APA (7a ed.)

Långström, B., & Hellqvist, C. Effects of different pruning regimes on growth and sapwood area of Scots pine.

Cita Chicago Style (17a ed.)

Långström, Bo, y Claes Hellqvist. Effects of Different Pruning Regimes on Growth and Sapwood Area of Scots Pine.

Cita MLA (8a ed.)

Långström, Bo, y Claes Hellqvist. Effects of Different Pruning Regimes on Growth and Sapwood Area of Scots Pine.