APA
(1969). International congress on glass, 8th, London, Great Britain, July 1-6, 1968. ed. by Society of glass Technology,1969. Great Britain publishing Co Ltd: England.
Chicago
1969. International congress on glass, 8th, London, Great Britain, July 1-6, 1968. ed. by Society of glass Technology,1969. Great Britain publishing Co Ltd: England.
Harvard
(1969). International congress on glass, 8th, London, Great Britain, July 1-6, 1968. ed. by Society of glass Technology,1969. Great Britain publishing Co Ltd: England.
MLA
International congress on glass, 8th, London, Great Britain, July 1-6, 1968. ed. by Society of glass Technology,1969. Great Britain publishing Co Ltd: England. 1969.
