31 books
1960 pub |157 pages
1961 pub |208 pages
1963 pub |160 pages
1965 pub |208 pages
1967 pub |256 pages
1968 pub |157 pages
1969 pub |141 pages
1970 pub
1971 pub |134 pages
Where Atlantis Died
1972 pub |352 pages
1974 pub |438 pages
1977 pub |402 pages
1978 pub |118 pages
1978 pub |176 pages
1978 pub |160 pages
1982 pub |184 pages
1983 pub |315 pages
1984 pub |483 pages
1985 pub |219 pages
1986 pub |416 pages
1987 pub |262 pages
1988 pub |368 pages
1992 pub |409 pages
1993 pub |480 pages
1993 pub |415 pages
1994 pub |229 pages
1996 pub |253 pages
1999 pub |270 pages
1999 pub |273 pages
2010 pub |304 pages
2066 pub |224 pages