Rube Goldberg and his amazing machines / Snider, Brandon T

ISBN13: 
9781419750045
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rubegoldbergandhisamazingmachines

Rube Goldberg and his amazing machines

2021
"When on the first day of middle school Principal Kim announces a Contraption Convention, young inventor Rube Goldberg must conquer his anxieties and a ghostly mystery to come up with something brilliant for the judges and his friends"--OCLC.
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