APA (7th ed.) Citation

Barbrow, L. E. (1976). What about metric ? ([Rev. Oct. 1976.].).

Chicago Style (17th ed.) Citation

Barbrow, Louis E. What About Metric ? [Rev. Oct. 1976.]. 1976.

MLA (9th ed.) Citation

Barbrow, Louis E. What About Metric ? [Rev. Oct. 1976.]. 1976.

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