EN ANGLAISCAMPBELL LH.1975; ORNIS SCAND.; NORVEGE; DA. 1975; VOL. 6; NO 1; PP. 27-32; BIBL. 8 REF.Article

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CHRONIC SUPERFICIAL KERATITIS IN DOGS: NEGATIVE RESULTS OF ISOLATION PROCEDURES FOR CHLAMYDIACAMPBELL LH; SYNDER SB.1973; AMER. J. VETER. RES.; U.S.A.; DA. 1973; VOL. 34; NO 4; PP. 579-580; BIBL. 18REF.Serial Issue

FIRTH OF FORTH OIL POLLUTION INCIDENT, FEBRUARY 1978CAMPBELL LH; STANDRING KT; CADBURY CJ et al.1978; MAR. POLLUT. BULL.; GBR; DA. 1978; VOL. 9; NO 12; PP. 335-339; BIBL. 8 REF.Article

CHRONIC SUPERFICIAL KERATITIS IN DOGS: DETECTION OF CELLULAR HYPERSENSITIVITYCAMPBELL LH; OKUDA HK; LIPTON DE et al.1975; AMER. J. VETER. RES.; U.S.A.; DA. 1975; VOL. 36; NO 5; PP. 669-671; BIBL. 13REF.Article