Olofsson, E. (1988). Epizootiology of the nuclear polyhedrosis virus of the European pine sawfly, Neodiprion sertifer (Fourcroy) (Hymenoptera, Diprionidae). Swedish University of Agricultural Sciences, Dept. of Plant and Forest Protection, Division of Forest Entomology.
Citace podle Chicago (17th ed.)Olofsson, Einar. Epizootiology of the Nuclear Polyhedrosis Virus of the European Pine Sawfly, Neodiprion Sertifer (Fourcroy) (Hymenoptera, Diprionidae). Uppsala, Sweden: Swedish University of Agricultural Sciences, Dept. of Plant and Forest Protection, Division of Forest Entomology, 1988.
Citace podle MLA (8th ed.)Olofsson, Einar. Epizootiology of the Nuclear Polyhedrosis Virus of the European Pine Sawfly, Neodiprion Sertifer (Fourcroy) (Hymenoptera, Diprionidae). Swedish University of Agricultural Sciences, Dept. of Plant and Forest Protection, Division of Forest Entomology, 1988.