Sylvia Engdahl
See bio under Sylvia Engdahl. (Her middle name was used only on some hardcover editions of her Young Adult novels. Her novels for adults therefore are not included in lists where it appears.) Almost all nonfiction books that appear under her name were edited, not authored, by her.
Books
Enchantress from the Stars
1970
ISBN 9781419399169
The Far Side of Evil
1971
ISBN 9780802788481
Journey Between Worlds
1970
ISBN 9781440680687
This star shall abide
1972
ISBN 9780615348346
Heritage of the star
1973
ISBN 9780575016699
Anywhere, Anywhen
1976
ISBN 9780689305375
The doors of the universe
1981
ISBN 9780689308079
Online Social Networking
2007
ISBN 9780737737998
Artificial Intelligence (Contemporary Issues Companion)
2007
ISBN 9780737738902
Free Speech (Issues on Trial)
2007
ISBN 9780737727913
Stewards of the Flame
2007
ISBN 9780615314877
Assisted suicide
2009
ISBN 9780737741339
Meningitis
2010
ISBN 9780737747904
The atomic bombings of Hiroshima and Nagasaki
2011
ISBN 9780737752564
Alternative therapies
2012
ISBN 9780737756104
Building the Panama Canal
2012
ISBN 9780737763645
Chronic fatigue syndrome
2012
ISBN 9780737757736
Prohibition
2012
ISBN 9780737763706
The Planet-Girded Suns
2012
ISBN 9780615645179
The Challenger disaster
2013
ISBN 9780737763652
The Bolshevik revolution
2014
ISBN 9780737763638
Mobile apps
2014
ISBN 9780737768916
Obesity
2015
ISBN 9780737772784