APA (7th ed.) Citation

Weichel, H. Laser Beam Propagation in the Atmosphere. SPIE Digital Library.

Chicago Style (17th ed.) Citation

Weichel, Hugo. Laser Beam Propagation in the Atmosphere. SPIE Digital Library.

MLA (8th ed.) Citation

Weichel, Hugo. Laser Beam Propagation in the Atmosphere. SPIE Digital Library.

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