What book contains this?

[Bookaholic_English]

I'd like to know exactly what book this sentence is derived from.
She sells sea shells on the seashore and the shells that she sells are the sea shells I'm sure.
Thank you!
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Rolling stone gathers no moss.

[Kitosdad]

It is a simple tongue-twister, although you might find it in a childrens book somewhere.
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Keep it simple ... Keep it interesting.

[Bookaholic_English]

No, I meant a book on pronunciation. I just got its photocopy, so, do not know the name of the book. And even it's a book for children, could you please suggest a name? I hope it's easy to buy.
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Rolling stone gathers no moss.

[Kitosdad]

Try a search on Amazon. Punch in, "Tongue twisters." You're sure to find what you are looking for.
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Keep it simple ... Keep it interesting.

[Bookaholic_English]

Thank you master.
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Rolling stone gathers no moss.