APA (7th ed.) Citation

Lindblad, B. A., & Porubčan, V. Orionid meteor stream.

Chicago Style (17th ed.) Citation

Lindblad, B. A., and Vladimír Porubčan. Orionid Meteor Stream.

MLA (9th ed.) Citation

Lindblad, B. A., and Vladimír Porubčan. Orionid Meteor Stream.

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