PROCEEDINGS- 20TH ANNUAL MEETING- NORTH CENTRAL BRANCH- ENTOMOLOGICAL SOCIETY OF AMERICA AND 44TH ANNUAL CONFERENCE- NORTH CENTRAL STATES ENTOMOLOGISTS.

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PROCEEDINGS NORTH CENTRAL BRANCH ENTOMOLOGICAL SOCIETY OF AMERICA 23RD ANNUAL MEETING AND THE 47TH ANNUAL CONFERENCE- NORTH CENTRAL STATES ENTOMOLOGISTS -2 PARTS-.

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PROCEEDINGS- 25TH ANNUAL MEETING- NORTH CENTRAL BRANCH- ENTOMOLOGICAL SOCIETY OF AMERICAN AND 49TH ANNUAL CONFERENCE- NORTH CENTRAL STATES ENTOMOLOGISTS- 2 PARTS.

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PROCEEDINGS OF THE 22ND ANNUAL MEETING- NORTH CENTRAL BRANCH ENTOMOLOGICAL SOCIETY OF AMERICA AND 46TH ANNUAL CONFERENCE- NORTH CENTRAL STATES ENTOMOLOGISTS.

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Proceedings Eighth Annual Meeting North Central Branch, American Entomological Society : North Central States Entomologists' Thirty-second Annual Conference : St. Louis, Missouri, March 19 and 20, 1953

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PROCEEDINGS OF THE 55TH ANNUAL MEETING OF THE NORTH CENTRAL STATES ENTOMOLOGISTS- NORTH CENTRAL BRANCH OF THE ENTOMOLOGICAL SOCIETY OF AMERICA.

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REPORT OF BUSINESS SESSIONS AND ABSTRACTS OF SELECTED PAPERS- 32ND ANNUAL MEETING OF THE ENTOMOLOGICAL SOCIETY OF AMERICA, NORTH CENTRAL BRANCH- 56TH ANNUAL CONFERENCE OF THE NORTH CENTRAL STATES ENTOMOLOGISTS.

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Proceedings - North Central Branch, Entomological Society of America

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Abstracts of the 54th Annual Meeting of the North Central Branch of the Entomological Society of America

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Proceedings Seventeenth Annual Meeting of the North Central States Entomologists

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