APA
Beard G., . (1976). International modern glass. Barrie & Jenkins, London: .
Chicago
Beard Geoffrey, . 1976. International modern glass. Barrie & Jenkins, London: .
Harvard
Beard G., . (1976). International modern glass. Barrie & Jenkins, London: .
MLA
Beard Geoffrey, . International modern glass. Barrie & Jenkins, London: . 1976.