APA (7th ed.) Citation

Hudson, G. V. (2013). New Zealand Moths and Butterflies (Macro-Lepidoptera). Project Gutenberg.

Chicago Style (17th ed.) Citation

Hudson, G. V. New Zealand Moths and Butterflies (Macro-Lepidoptera). Project Gutenberg, 2013.

MLA (9th ed.) Citation

Hudson, G. V. New Zealand Moths and Butterflies (Macro-Lepidoptera). Project Gutenberg, 2013.

Warning: These citations may not always be 100% accurate.