The development and history of chewing gum.
Cloys
L A
LA
Christen
A G
AG
Christen
J A
JA
D002170:Canada; D002489:Central America; D002638:Chewing Gum / Q000266:history*; D005060:Europe; D049670:History, 17th Century; D049672:History, 19th Century; D049673:History, 20th Century; D049690:History, Ancient; D014481:United States
D002638:Chewing Gum