Glenn Leggett,...[et al.] Glenn Leggett,...[et al. Glenn Adamson... [et al.] D. S. Wright,...[et al.] Hegger ... [et al.] Irving Bartlett,...[et al.] Helen C. Derrick,...[et al.] Lao She,...[et al.] Nina Baym,...[et al.] Allen H. Kelson,...[et al.]