(en) Christina L. Williams et Kristen E. Pleil, « Toy story: Why do monkey and human males prefer trucks? Comment on “Sex differences in rhesus monkey toy preferences parallel those of children” by Hassett, Siebert and Wallen », Hormones and behavior, vol. 54, no 3, , p. 355–358 (ISSN0018-506X, PMID18586246, PMCIDPMCPMC2755553, DOI10.1016/j.yhbeh.2008.05.003, lire en ligne, consulté le )
epnet.com
web110.epnet.com
(en) Mary Ucci, « Playdough: 50 Years' Old, And Still Gooey, Fun, And Educational », Child Health Alert, vol. 24, (résumé).
europa.eu
ec.europa.eu
COM 2012 (225), A European Consumer Agenda - Boosting confidence and growth {SWD(2012) 132 final}
(en) Christina L. Williams et Kristen E. Pleil, « Toy story: Why do monkey and human males prefer trucks? Comment on “Sex differences in rhesus monkey toy preferences parallel those of children” by Hassett, Siebert and Wallen », Hormones and behavior, vol. 54, no 3, , p. 355–358 (ISSN0018-506X, PMID18586246, PMCIDPMCPMC2755553, DOI10.1016/j.yhbeh.2008.05.003, lire en ligne, consulté le )
(en) Christina L. Williams et Kristen E. Pleil, « Toy story: Why do monkey and human males prefer trucks? Comment on “Sex differences in rhesus monkey toy preferences parallel those of children” by Hassett, Siebert and Wallen », Hormones and behavior, vol. 54, no 3, , p. 355–358 (ISSN0018-506X, PMID18586246, PMCIDPMCPMC2755553, DOI10.1016/j.yhbeh.2008.05.003, lire en ligne, consulté le )
nytimes.com
select.nytimes.com
(en) Patricia Leigh Brown, « New Auction Gems: Common Folks; Venerable Houses Woo Unstuffy Buyers With Unstuffy Stuff », The New York Times, , p. 37 (lire en ligne, consulté le )
(en) Valerie Oliver, « History Of The Yo-Yo », Spintastics Skill Toys, Inc., (consulté le )
telegram.com
(en) Lisa Eckelbecker, « Santa helpers deal with toy recalls; Charities must scrutinize gifts », Worcester Telegram & Gazette, (lire en ligne, consulté le )
