APA-ийн эшлэл(7 дахь хэвлэлт)

Hsiang, W. Y. (2001). Least action principle of crystal formation of dense packing type and the proof of Kepler's conjecture. World Scientific.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Hsiang, Wu Yi. Least Action Principle of Crystal Formation of Dense Packing Type and the Proof of Kepler's Conjecture. Singapore ; River Edge, NJ: World Scientific, 2001.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Hsiang, Wu Yi. Least Action Principle of Crystal Formation of Dense Packing Type and the Proof of Kepler's Conjecture. World Scientific, 2001.