2
by Barrett, Bruce M.
Published 1984.

Report Number(s): APA 1450 RTS 19 SUS 308

Link to full text
3
by Barrett, Bruce M.
Published 1985.

Report Number(s): APA 2748 (draft) RTS 29 (draft) SUS 448

Link to full text
4
by Barrett, Bruce M.
Published [1985]

Report Number(s): APA 2748 RTS 29 SUS 530

Link to full text