APA (7th ed.) Citation

Picozza, P., Malvezzi, V., & Marcelli, L. Cosmic rays under the knee.

Chicago Style (17th ed.) Citation

Picozza, Piergiorgio, Valeria Malvezzi, and Laura Marcelli. Cosmic Rays Under the Knee.

MLA (9th ed.) Citation

Picozza, Piergiorgio, et al. Cosmic Rays Under the Knee.

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