1
7
9
Published [1984?]

Report Number(s): APA 2778 (draft)

Link to full text
10
12
13
Published [1983]

Report Number(s): APA 559 APA 667

Link to full text
14
Published [1983]

Report Number(s): APA 2427

Link to full text
17
Published [1981]

Report Number(s): APA 2357

Link to full text
18
19
Published [1982]

Report Number(s): APA 2954 APA 2955 SUS 65

Link to full text