1
Published 1992
National Academies Press
Subjects: ...Research / organization & administration...

2
by Townsend, Jessica
Published 1992
National Academy Press
Subjects: ...Research Design...

3
by Olson, Steve
Published 1989
National Academy Press
Subjects: ...Biomedical Research / ethics...

4
Published 2004
National Academies Press
Subjects: ...Research / organization & administration...