APA (7th ed.) Citation

Pechar, F., & Rykl, D. Infrared spectra of natural zeolites of the stilbite group.

Chicago Style (17th ed.) Citation

Pechar, František, and D. Rykl. Infrared Spectra of Natural Zeolites of the Stilbite Group.

MLA (9th ed.) Citation

Pechar, František, and D. Rykl. Infrared Spectra of Natural Zeolites of the Stilbite Group.

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