Destructive and useful insects :
Metcalf,Robert Lee, 1916-
Destructive and useful insects : their habits and control/ Robert L. Metcalf, Robert A. Metcalf. - 5th ed. - New York : McGraw-Hill, c1993. - 1 v. (various paging) : ill. ; 24 cm.
Includes bibliographical references and index.
0070416923
Insect pests.
Beneficial insects.
Insect pests--Control.
SB931 / M48 1993
Destructive and useful insects : their habits and control/ Robert L. Metcalf, Robert A. Metcalf. - 5th ed. - New York : McGraw-Hill, c1993. - 1 v. (various paging) : ill. ; 24 cm.
Includes bibliographical references and index.
0070416923
Insect pests.
Beneficial insects.
Insect pests--Control.
SB931 / M48 1993