APA (7th ed.) Citation

(1990). Gauge invariance. American Assoc. of Physics Teachers.

Chicago Style (17th ed.) Citation

Gauge Invariance. College Park, Md: American Assoc. of Physics Teachers, 1990.

MLA (9th ed.) Citation

Gauge Invariance. American Assoc. of Physics Teachers, 1990.

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