Published by Horizon Press, 1971; ISBN 0-8180-1705-8 (First published by Dodd, Mead, and company in 1913, ASIN B00085D6P8) Scanned book, Project Gutenberg Full Text* "The Life of the Fly".
Published by Horizon Press, 1971; ISBN 0-8180-1705-8 (First published by Dodd, Mead, and company in 1913, ASIN B00085D6P8) электронный вариант, на проекте Гутенберг* "The Life of the Fly".