APA (7th ed.) Citation

(1975). Specification for porcelain insulators for telegraph and telephone lines. bureau of ceylon standards.

Chicago Style (17th ed.) Citation

Specification for Porcelain Insulators for Telegraph and Telephone Lines. Colombo: bureau of ceylon standards, 1975.

MLA (9th ed.) Citation

Specification for Porcelain Insulators for Telegraph and Telephone Lines. bureau of ceylon standards, 1975.

Warning: These citations may not always be 100% accurate.