00553cam a2200217Ma 4500 ocn122270021 OCoLC 20150511125951.0 910203s1960 sa 000 0 afr d 0625005538 (pbk) 9780625005536 (pbk) (OCoLC)122270021 St. 3. 1ste uitg. 116 p. 16de dr. 1985 (R3,30) 7de [d.i. 17de] dr. 1987 (R4,25) 18de dr. 1987 (R4,25) 19de dr. 1988 (R6,50) 20ste dr. 1990 (R6,50) 296 296