- 21St Century Astronomy Fifth Edition eBook – PDF Version
- Author: Laura Kay, Stacy Pale, George Blumenthal
- ISBN-13: 978-0393938999
- ISBN-10: 393938999
- Length: 816 pages
- Publisher: W. W. Norton & Company
- Language: English
About 21St Century Astronomy Fifth Edition eBook – PDF Version
Influenced by astronomy education research, 21st Century Astronomy offers a complete pedagogical and media package that facilitates learning by doing