كتب بواسطة John R. Percy - BookPine

Understanding Variable Stars

Understanding Variable Stars

John R. Percy

Teaching and Learning Astronomy: Effective Strategies for Educators Worldwide

Teaching and Learning Astronomy: Effective Strategies for Educators Worldwide

Jay M. Pasachoff

Amateur-Professional Partnerships in Astronomy

Amateur-Professional Partnerships in Astronomy

John R. Percy

Amateur-Professional Partnerships in Astronomy: The 111th Annual Meeting of the ASP

Amateur-Professional Partnerships in Astronomy: The 111th Annual Meeting of the ASP

John R. Percy

Vol. 220 - Amateur-Professional Partnerships in Astronomy: The 111th Annual Meeting of the ASP

Vol. 220 - Amateur-Professional Partnerships in Astronomy: The 111th Annual Meeting of the ASP

John R. Percy

Astronomy Education: Current Developments, Future Coordination

Astronomy Education: Current Developments, Future Coordination

John R. Percy

Vol. 89 - Astronomy Education: Current Developments, Future Coordination

Vol. 89 - Astronomy Education: Current Developments, Future Coordination

John R. Percy

The Teaching of Astronomy: IAU Colloquium 105

The Teaching of Astronomy: IAU Colloquium 105

Jay M. Pasachoff

Variable Star Research: An International Perspective

Variable Star Research: An International Perspective

John R. Percy

The Study of Variable Stars Using Small Telescopes

The Study of Variable Stars Using Small Telescopes

John R. Percy

STUDY OF VARIABLE STARS USING SMALL TELE

STUDY OF VARIABLE STARS USING SMALL TELE

John R. Percy

The Observer's Handbook 1973

The Observer's Handbook 1973

John R. Percy

The Observer's Handbook 1974 : Sixty-sixth Year of Publication

The Observer's Handbook 1974 : Sixty-sixth Year of Publication

John R. Percy