APA

Institut Za Topolarstvo-Poplars Research Institute, . (1986). Poplars and willows in Yuguslavia. Novi sad: Poplar Research Institute.

Chicago

Institut Za Topolarstvo-Poplars Research Institute, . 1986. Poplars and willows in Yuguslavia. Novi sad: Poplar Research Institute.

Harvard

Institut Za Topolarstvo-Poplars Research Institute, . (1986). Poplars and willows in Yuguslavia. Novi sad: Poplar Research Institute.

MLA

Institut Za Topolarstvo-Poplars Research Institute, . Poplars and willows in Yuguslavia. Novi sad: Poplar Research Institute. 1986.