Progressive farmer.

v.88:1 1973; v.88:2 1973; v.89:1 1974; v.89:2 1974; v.90 no.1-6 1975; v.90 no.7-12 1975; v.91 no.1-6 1976; v.91 no.7-12 1976; v.92 no.1-6 1977; v.92 no.7-12 1977; v.93:7-12 1978; v.93 no.1-6 1978; v.94:1-6 1979; v.94:7-12 1979; v.95:1-6 1980; v.95:7-12 1980; v.96:1-6 1981; v.96:7-12 1981; v.97:7-12 (incomplete); v.97:1-6 1982; v.98:1-6 1983; v.98:7-12 1983; v.99:1-6 1984; v.99:7-12 1984; v.100:1-6 1985; v.100:7-12 1985; v.101 1986; v.102 1987; v.103 (1988); v.104 (1989); v.105 (1990); v.106 (1991); v.107 (1992); v.108 (1993); v.109:1-11 (1994); v.110 (1995); v.111 (1996); v.112 (1997); v.113 (1998); v.114:1-13 (1999); v.115:1-6 (2000); v.115:7-12 (2000); v.116 (2001); v.117 (2002); v.118:1-3,5-11 (2003); v.30(1915)