Citação norma APA

Helm, C. A., Tippmann-Krayer, P., Möhwald, H., Als-Nielsen, J., & Kjaer, K. (1991). Phases of phosphatidyl ethanolamine monolayers studied by synchrotron x-ray scattering.

Citação norma Chicago

Helm, C A., P. Tippmann-Krayer, H. Möhwald, J. Als-Nielsen, and K. Kjaer. Phases of Phosphatidyl Ethanolamine Monolayers Studied By Synchrotron X-ray Scattering. 1991.

Citação norma MLA

Helm, C A., et al. Phases of Phosphatidyl Ethanolamine Monolayers Studied By Synchrotron X-ray Scattering. 1991.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.