?
Gauss, Carl Friedrich & H. (translator into German) Maser (1965),
Untersuchungen uber hohere Arithmetik (Disquisitiones Arithemeticae & other papers on number theory) (Second edition),
New York: Chelsea, ISBN 0-8284-0191-8
?
Lemmermeyer, Franz (2000), Reciprocity Laws: from Euler to Eisenstein, Berlin: Springer, ISBN 3-540-66967-4
?
Ireland, Kenneth & Michael Rosen (1990), A Classical Introduction to Modern Number Theory (second edition), New York: Springer, ISBN
0-387-97329-X
[编辑] 外部链接
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二次互反律 高斯二次互反律
（英文）二次互反律的224个证明．於2008年9月1日查閱．