APA
Porcelain Enamel Institute. Annual Forum.( 10th: 1948 O., Proceedings of the Tenth Annual Porcelain Enamel Institute Forum, . (1949). Proceedings of the Tenth Annual Porcelain Enamel Institute Forum. Porcelain Enamel Institute: Washington, D. C.
Chicago
Porcelain Enamel Institute. Annual Forum.( 10th: 1948 Oct, Proceedings of the Tenth Annual Porcelain Enamel Institute Forum, . 1949. Proceedings of the Tenth Annual Porcelain Enamel Institute Forum. Porcelain Enamel Institute: Washington, D. C.
Harvard
Porcelain Enamel Institute. Annual Forum.( 10th: 1948 O., Proceedings of the Tenth Annual Porcelain Enamel Institute Forum, . (1949). Proceedings of the Tenth Annual Porcelain Enamel Institute Forum. Porcelain Enamel Institute: Washington, D. C.
MLA
Porcelain Enamel Institute. Annual Forum.( 10th: 1948 Oct, Proceedings of the Tenth Annual Porcelain Enamel Institute Forum, . Proceedings of the Tenth Annual Porcelain Enamel Institute Forum. Porcelain Enamel Institute: Washington, D. C. 1949.