Nippon Geka Hokan

Articles in SafetyLit
Y-Axis = Volume :: X-Axis = Issue
?=unknown status :: X=no issue published :: nn=articles from issue :: A=relevant article(s) IDed to add
S=searched, nothing relevant :: O=issue published but not yet searched :: C=combination issue

	1	2	3	5	6

36 (1967)	?	1	?	?	1
37 (1968)	?	?	1	?	?
42 (1973)	1	?	?	?	?
44 (1975)	?	1	?	?	?
45 (1976)	1	?	?	?	?
46 (1977)	?	?	?	1	?
49 (1980)	?	1	?	?	?
53 (1984)	1	?	?	?	?