J. C. Gray has written:
'Co-operation in agriculture'
E J. Gray has written: 'Adam of the road'
Trudy J. Gray has written: 'Second phase additions to superconducting YBCO thick films'
J. S. Gray has written: 'On the preparation and biological assay of enterogastrone' -- subject(s): Assaying
J A C. Cramer has written: 'Vibration'
C. J. Killen has written: 'Technical education'
J. C Furnas has written: 'Voyage to windward'
J.-C Nicolet has written: 'From hand to machine'
J. C. Rohling has written: 'Deutschlands Flora'
J. C. Mariategui has written: 'Obra politica'
J. C. Hoorweg has written: 'Psychology in Africa'
C.-J Rougemaitre has written: 'Le perroquet'
J. C. S. has written: 'An Indian legend'