ISBN 1-4102-0007-8; ISBN 978-1-4102-0007-5* "More Hunting Wasps" Scanned book Project Gutenberg Full Text* "The Wonders of Instinct: Chapters in the Psychology of Insects".
ISBN 1-4102-0007-8; ISBN 978-1-4102-0007-5* "More Hunting Wasps" электронный вариант на проекте Гутенберг* "The Wonders of Instinct: Chapters in the Psychology of Insects".