Highway research record

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



37 (1971)	4
40 (1972)	4
41 (1972)	2
398 (1972)	1
406 (1972)	3
409 (1972)	2
410 (1972)	1
412 (1972)	1
414 (1972)	6
415 (1972)	1
418 (1972)	3
420 (1972)	1
421 (1972)	1
426 (1973)	1
428 (1973)	1
432 (1973)	2
436 (1973)	1
437 (1973)	2
438 (1973)	1
440 (1973)	2
445 (1973)	2
446 (1973)	1
447 (1973)	1
450 (1973)	1
451 (1973)	1
452 (1973)	1
453 (1973)	4
455 (1973)	1
456 (1973)	4
458 (1973)	1
460 (1973)	9
461 (1973)	2
464 (1973)	2
467 (1973)	2
469 (1973)	5
471 (1973)	4
473 (1973)	3
474 (1973)	2
477 (1973)	4