American documentation.

v.1 1950; v.1-2 1950-1951; v.2-3 1951-1952; v.3-4 1952-1953; v.4-5 1953-1954; v.5-6 1954; v.6-7 1955-1956; v.7-8 1956-1957; v.8-9 1957-1958; v.9 1958; v.10 1959; v.11 1960; v.11 no.3 1960; v.12 1961; v.13 1962; v.14 1963; v.15; v.16 1965; v.17-18 1966-1967; v.19 1968; v.20 1969; 1975; v.39 1988; v.40 1989; v.42:no.1-5 1991; v.42:no.6-10 1991; v.43:no.1-5 1992; v.43:no.6-10 1992; v.44:no.1-5 1993; v.44:no.6-10 1993; v.45:no.1-5 1994; v.45:no.6-10 1994; v.46:no.6-10 1995; v.52:no.1-5 2001; v.52:no.6-10 2001; v.52:no.11-14 2001; v.53:no.1-5 2002; v.53:no.6-10 2002; v.53:no.11-14 2002; v.54:no.1-5 2003; v.12-15 index 1964