Clausen, C.P. 1924 Part II. Biological studies and life histories. [The parasites of Pseudococcus maritimus (Ehrhorn) in California.]. University of California Publications in Entomology 3: 252-265.

Notes: Topics covered include comparative experiments upon regional forms of Pseudococcus, interrelationships among parasites, rearing records, breeding methods, parthenogenesis, the economic importance of the parasites of P. maritimus and life histories.