Peter Duffett-Smith
Peter Duffett-Smith
4 books in the database
Books
Practical astronomy with your calculator or spreadsheetPeter Duffett-Smith
Practical astronomy with your calculator or spreadsheet
Peter Duffett-Smith · 2017
Astronomy with your personal computerPeter Duffett-Smith
Astronomy with your personal computer
Peter Duffett-Smith · 1985
Practical astronomy with your calculatorPeter Duffett-Smith
Practical astronomy with your calculator
Peter Duffett-Smith · 1979
Astronomy Personal ComputerPeter Duffett-Smith
Astronomy Personal Computer
Peter Duffett-Smith