APA (7th ed.) Citation

Jeffcott, H. H. (1915). A direct-reading tachometer.

Chicago Style (17th ed.) Citation

Jeffcott, H. H. A Direct-reading Tachometer. 1915.

MLA (9th ed.) Citation

Jeffcott, H. H. A Direct-reading Tachometer. 1915.

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