Cita APA

Halford, S. E., & Johnson, N. P. (1981). The EcoRI restriction endonuclease, covalently closed DNA and ethidium bromide.

Chicago Style Citation

Halford, S E., i N P. Johnson. The EcoRI Restriction Endonuclease, Covalently Closed DNA and Ethidium Bromide. 1981.

Cita MLA

Halford, S E., i N P. Johnson. The EcoRI Restriction Endonuclease, Covalently Closed DNA and Ethidium Bromide. 1981.