APA引文

Churchill, P. F., Harper, J. P., Jackson, C. R., Roden, E. E., & Willoughby, D. A simple, efficient method for the separation of humic substances and DNA from environmental samples.

Trích dẫn kiểu Chicago

Churchill, P. F., J. P. Harper, C. R. Jackson, E. E. Roden, và D. Willoughby. A Simple, Efficient Method for the Separation of Humic Substances and DNA From Environmental Samples.

MLA引文

Churchill, P. F., et al. A Simple, Efficient Method for the Separation of Humic Substances and DNA From Environmental Samples.