Trích dẫn APA

Knopoff, L. (2000). The magnitude distribution of declustered earthquakes in Southern California. The National Academy of Sciences.

Trích dẫn kiểu Chicago

Knopoff, Leon. The Magnitude Distribution of Declustered Earthquakes in Southern California. The National Academy of Sciences, 2000.

Trích dẫn MLA

Knopoff, Leon. The Magnitude Distribution of Declustered Earthquakes in Southern California. The National Academy of Sciences, 2000.

Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.