text bibliography dcu Washington Govt. Print. Off. 1915 monographic eng

print

v, 43 p. incl. illus., map, tables, diagr. II pl. 23 cm. I. Studies on a new species of Toxoptera ... By W.J. Phillips and J.J. Davis.--II. The yellow clover aphis. By J.J. Davis. Papers first published separately, 1912-1914. Bibliography: p. 40. Aphids SB822 .A31 no. 25 agr15001507 U.S. Dept. of Agriculture Library 930412 20260227110938.0 agr15001507