Ashley Nicholls

Cotter (2008), p. 1. Ashley, Nicholls & Langford 2015 Breen (Spring 2008), reprinted in Breen (2008), p.66. Jones (1975), p. xv. Ashley, Michael. The History

Connecticut: Greenwood Press. 1985: 537–539. ISBN 0-313-21221-X.  Ashley, Mike; Nicholls, Peter; Stableford, Brian. Amazing Stories. The Encyclopedia of

25–26. Nicholls & Clute (1993), pp. 483–484. Edwards & Nicholls (1993), pp. 1066–1069. Magazine publishing dates for the period are tabulated in Ashley, History

Science Fiction". Edwards & Nicholls, "SF Magazines", in Nicholls & Clute, Encyclopedia of Science Fiction, p. 1068. Ashley, History of the Science Fiction

的画作均署名“劳伦斯”（Lawrence）。 Ashley, Time Machines, pp. 16–23. Malcolm Edwards & Peter Nicholls, "SF Magazines", in Clute & Nicholls, Encyclopedia of Science