Whiting, Bartlett J.: Early American proverbs and proverbial phrases, s. 58. London: The Belknap Press of Harvard University Press, 1977. ISBN 978067421981 6. Teoksen verkkoversio (viitattu 12.11.2021). (englanniksi)
Walter, Elizabeth: Cambridge advanced leaner's dictionary, s. 209. Cambridge: Cambridge university press, 2008. ISBN 978-0-521-71266-8. Teoksen verkkoversio (viitattu 12.11.2021). (englanniksi)
Wilkinson, Peter Richard: Concise Thesaurus of Traditional English Metaphors, s. 171. Londo n: Routledge, 2008. ISBN 9780415430845. Teoksen verkkoversio (viitattu 12,11,2021). (englanniksi)
Knight, John: Mechanics' Magazine. Journal of the Mechanics, 1834, 4. vsk, s. 363. D. K. Minor and J. E. Challis. Teoksen verkkoversio. Viitattu 12.11.2021. (englanniksi)
Cart before the horse. (sitaatti: " ... 1- hp motor ... two speeds forward; the machine is not constructed to reverse. No lines are used, the conveyance being directed by means of a steering wheel ....") Popular Mechanics, Huhtikuu 1907, s. 425. The Popular Mechanics Company. Teoksen verkkoversio. Viitattu 12.11.2021. (englanniksi)
Manser, Martin H. & Fergusson, Rosalind: The Facts on File dictionary of proverbs, s. 63. sitaatti: "The proverb was first recorded in this form c. 1520.". New York: Facts on File cop., 2002. ISBN 0816046077. Teoksen verkkoversio (viitattu 12.11.2021). (englanniksi)
Adamson, Sylvia et al.: Renaissance figures of speech, s. 133. Cambridge University Press, 2007. ISBN 9780521866408. Teoksen verkkoversio (viitattu 12.11.2021). (englanniksi)
Mieder, Wolfgang & Dundes, Alan: The wisdom of many: essays on the proverb. s. 57, sitaatti: "... the proverb reverses the usual chronological priority of actions A and B .... In attempting to distinguish between identificational versus contrastive features in proverbs or between nonoppositional or oppositional proverbs, one needs to bear in mind that not all proverbs fall neatly into one category.". New York: Garland, 1981. ISBN 0-8240-9472-7. Teoksen verkkoversio (viitattu 12.11.2021). (englanniksi)
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Apperson, George Latimer: The Wordsworth dictionary of proverbs, s. 85. Wordsworth, 2006. ISBN 9781840223118. Teoksen verkkoversio (viitattu 12.11.2021). (englanniksi)