APA (7th ed.) Citation

Graham, M. W. R. d. V. (1969). The Pteromalidae of North-Western Europe <Hymenoptera: Chalcidoidea>.

Chicago Style (17th ed.) Citation

Graham, Marcus William Robert de Vere. The Pteromalidae of North-Western Europe <Hymenoptera: Chalcidoidea>. 1969.

MLA (9th ed.) Citation

Graham, Marcus William Robert de Vere. The Pteromalidae of North-Western Europe <Hymenoptera: Chalcidoidea>. 1969.

Warning: These citations may not always be 100% accurate.