APA citiranje

Rittoo, D. B., & Rittoo, D. (1991). Puncture the skin before inserting a needle.

Citação norma Chicago

Rittoo, D B., and Dylmitr Rittoo. Puncture the Skin Before Inserting a Needle. 1991.

MLA citiranje

Rittoo, D B., and Dylmitr Rittoo. Puncture the Skin Before Inserting a Needle. 1991.

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