23
Published 1992
National Academies Press

24
Published 2007
National Academies Press

25
by Fox, Marye Anne
Published 2003
National Academies Press

26
Published 2010
National Academies Press

27
Published 2011
National Academies Press

30
Published 2000
National Academies Press

32
Published 2002
National Academies Press

33
by Cohen, Howard J.
Published 2011
National Academies Press

34
Published 2011
National Academies Press

35
Published 2003
National Academies Press

36
Published 2008
National Academies Press

37
Published 1992
National Academy Press

38
Published 2018
The National Academies Press

39
by Bain, Lisa J.
Published 2018
the National Academies Press