Cita APA (7a ed.)

Barker, W. R. (2007). Euphrasia tasmanica Gand. formally reduced to a subspecies in E. collina R.Br. Zenodo.

Cita Chicago Style (17a ed.)

Barker, William R. Euphrasia Tasmanica Gand. Formally Reduced to a Subspecies in E. Collina R.Br. Zenodo, 2007.

Cita MLA (9a ed.)

Barker, William R. Euphrasia Tasmanica Gand. Formally Reduced to a Subspecies in E. Collina R.Br. Zenodo, 2007.