David Ratledge

David Ratledge

1945

3 ספרים במאגר

ספרים

Observing the Caldwell ObjectsDavid Ratledge

Observing the Caldwell Objects

David Ratledge · 2000

Digital AstrophotographyDavid Ratledge

Digital Astrophotography

David Ratledge · 2005

Software and data for practical astronomersDavid Ratledge

Software and data for practical astronomers

David Ratledge · 1998