APA Citation

Christopherson, J. B. (1917). A Large Salivary Calculus from Khartoum, Sudan.

Citação norma Chicago

Christopherson, J. B. A Large Salivary Calculus From Khartoum, Sudan. 1917.

MLA Citation

Christopherson, J. B. A Large Salivary Calculus From Khartoum, Sudan. 1917.

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