Lehr, R. E. A., & Marchand , A. P. Orbital sysmmetry.
Chicago Edition CitationLehr, Ronald E. And, and Alan P. Marchand. Orbital Sysmmetry.
MLA Edition CitationLehr, Ronald E. And, and Alan P. Marchand. Orbital Sysmmetry.
Warning: These citations may not always be 100% accurate.