Editions of Those who watch

176 pages

Published Nov. 23, 1977 by New Eng. Lib..

176 pages

Published April 1, 1979 by New English Library Ltd.

Paperback, 156 pages

German language

Published June 21, 1968 by Moewig.

143 pages

English language

Published Nov. 23, 1967 by Signet.

mass market paperback

English language

Published Jan. 1, 1967 by Signet (New American Library).

English language

Published Jan. 1, 1971 by Roc.

Paperback

Published Jan. 1, 1971 by Roc.

1 pages

Published Jan. 1, 1971 by Roc.

143 pages

English language

Published Nov. 23, 1967 by Signet.

Published Jan. 1, 1971 by Roc.