1
Published [1977]

Report Number(s): APA 3284 (draft)

Link to full text
2
Published [1978]

Report Number(s): APA 3284

Link to full text
3
Published [1981?]

Report Number(s): APA 62 APA 1265

Link to full text
Link to full text
5
Published 1980?]

Report Number(s): APA 392

Link to full text
6
8
Published [1983]

Report Number(s): SUS 344

Link to full text
9