APA-referens

Blackman, R., & Eastop, V. (1994). Aphids on the worlds Trees: An Identification and Infoarmation guide. CAB International.

Chicago-stil citat

Blackman, R.L, och V.F Eastop. Aphids on the Worlds Trees: An Identification and Infoarmation Guide. U.K: CAB International, 1994.

MLA-referens

Blackman, R.L, och V.F Eastop. Aphids on the Worlds Trees: An Identification and Infoarmation Guide. CAB International, 1994.