APA引文

Salim, M., Williamson, R., & Maden, B. E. (1971). Studies on the methylated regions of HeLa-cell ribosomal and nucleolar ribonucleic acids.

Citação norma Chicago

Salim, M., R. Williamson, and B E. Maden. Studies On the Methylated Regions of HeLa-cell Ribosomal and Nucleolar Ribonucleic Acids. 1971.

MLA引文

Salim, M., R. Williamson, and B E. Maden. Studies On the Methylated Regions of HeLa-cell Ribosomal and Nucleolar Ribonucleic Acids. 1971.

警告：這些引文格式不一定是100％准確.