Borchsenius, N.S. 1937a Coccidae of Quarantine Value for U.S.S.R. and their allied species.. Plant Quar. Sta. Tbilisi, Georgia 272 pp. + 72 pls.

Notes: Textbook used by Plant Quarantine Service; includes keys to subfamilies, tribes, gen., and species of quarantine importance; gives references, hosts and distribution for each species.