A study of the oyster-shell scale, Lepidosaphes ulmi (L.), and one of its parasites, Aphelinus mytilaspidis Le B.. Ithaca: Cornell University, 1925 67 p. : ill., tab.
A study of the oyster-shell scale, Lepidosaphes ulmi (L.), and one of its parasites, Aphelinus mytilaspidis Le B.. Ithaca: Cornell University, 1925 67 p. : ill., tab.
(1925) A study of the oyster-shell scale, Lepidosaphes ulmi (L.), and one of its parasites, Aphelinus mytilaspidis Le B., Ithaca: Cornell University 67 p. : ill., tab.
(1925). A study of the oyster-shell scale, Lepidosaphes ulmi (L.), and one of its parasites, Aphelinus mytilaspidis Le B.. Ithaca: Cornell University, 67 p. : ill., tab.
A study of the oyster-shell scale, Lepidosaphes ulmi (L.), and one of its parasites, Aphelinus mytilaspidis Le B.. Ithaca: Cornell University; 1925. p. 67 p. : ill., tab.
