APA Citation

Feng, Z. Why are the Gergonne and Soddy Lines perpendicular ? A synthetic approachWhy are the Gergonne and Soddy Lines Perpendicular? A synthetic approach.

Chicago Style Citation

Feng, Zuming. Why Are the Gergonne and Soddy Lines Perpendicular ? A Synthetic ApproachWhy Are the Gergonne and Soddy Lines Perpendicular? A Synthetic Approach.

MLA Citation

Feng, Zuming. Why Are the Gergonne and Soddy Lines Perpendicular ? A Synthetic ApproachWhy Are the Gergonne and Soddy Lines Perpendicular? A Synthetic Approach.

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