4
5
Published [1979]

Report Number(s): APA 146 (draft) APA 3205 (draft)

Link to full text
6
8
10
13
14
15
16
Published [1985]

Report Number(s): APA 2920 SUS 585

Link to full text
18
19
20
Published [1982]

Report Number(s): APA 1289

Link to full text