Ralph W. Holzenthal

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Books by Ralph W. Holzenthal (50 max)

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Studies of neotropical caddisflies, LI: systematics of the neotropical caddisfly genus Contulma (Trichoptera: Anomalopsychidae)

1995

Ralph W. Holzenthal

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Interactive key to the aquatic insects of north america [recurso electrónico] - 4. edición

2008

Ralph W. Holzenthal, Kenneth W. Cummins