Peter Duffett-Smith

Peter Duffett-Smith has written at least 2 books. Their most popular book is Practical astronomy with your calculator or spreadsheet with 1 save with an average rating of -⭐.

Details	Rating	Readers Count	Controls
Practical astronomy with your calculator or spreadsheet Peter Duffett-Smith	0	1 read
Practical Astronomy with your Calculator Practical Astronomy with your Calculator Peter Duffett-Smith	0	0 reads

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