Charles W. Heckman

Encyclopedia of South American aquatic insects

Charles W. Heckman

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Charles W. Heckman Encyclopedia of South American aquatic insects

Encyclopedia of South American Aquatic Insects: Odonata - Anisoptera

Charles W. Heckman

Agotado

Charles W. Heckman Encyclopedia of South American Aquatic Insects: Odonata - Anisoptera

The Phnom Penh Airlift

Charles W. Heckman

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Charles W. Heckman The Phnom Penh Airlift

Neuroptera (Including Megaloptera)

Charles W. Heckman

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Charles W. Heckman Neuroptera (Including Megaloptera)

Encyclopedia of South American Aquatic Insects: Plecoptera

Charles W. Heckman

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Charles W. Heckman Encyclopedia of South American Aquatic Insects: Plecoptera

Encyclopedia of South American Aquatic Insects: Collembola

Charles W. Heckman

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Charles W. Heckman Encyclopedia of South American Aquatic Insects: Collembola

Encyclopedia of South American Aquatic Insects: Odonata - Zygoptera

Charles W. Heckman

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Charles W. Heckman Encyclopedia of South American Aquatic Insects: Odonata - Zygoptera

Encyclopedia of South American Aquatic Insects: Ephemeroptera

Charles W. Heckman

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Charles W. Heckman Encyclopedia of South American Aquatic Insects: Ephemeroptera

Encyclopedia of South American Aquatic Insects: Hemiptera - Heteroptera

Charles W. Heckman

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Charles W. Heckman Encyclopedia of South American Aquatic Insects: Hemiptera - Heteroptera

Rice Field Ecology in Northeastern Thailand

Charles W. Heckman

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Charles W. Heckman Rice Field Ecology in Northeastern Thailand