APA (7th ed.) Citation

Al-Absi, M., & unknown. (2006). Frequency Independent Phase Shifter.

Chicago Style (17th ed.) Citation

Al-Absi, Munir, and unknown. Frequency Independent Phase Shifter. 2006.

MLA (9th ed.) Citation

Al-Absi, Munir, and unknown. Frequency Independent Phase Shifter. 2006.

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