Song Quotes - Page 68
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John Muir, Terry Gifford (1996). “John Muir: His Life and Letters and Other Writings”, p.109, The Mountaineers Books
John Green, David Levithan (2010). “Will Grayson, Will Grayson”, p.8, Penguin
I'm leaving on a jet plane Don't know when I'll be back again
"Leaving on a Jet Plane" (song) (1967)
"Jason Mraz Goes to School". Christina Fuoco, Rolling Stone, September 2, 2007.