APA (7th ed.) Citation

Pahshchenko, I., Pilipenko, S., & Vitrishchak, V. (2011). Seyfert galaxies and "Unified Scheme". Advances in astronomy and space physics.

Chicago Style (17th ed.) Citation

Pahshchenko, I.N, S.V Pilipenko, and V.M Vitrishchak. Seyfert Galaxies and "Unified Scheme". Advances in astronomy and space physics, 2011.

MLA (8th ed.) Citation

Pahshchenko, I.N, et al. Seyfert Galaxies and "Unified Scheme". Advances in astronomy and space physics, 2011.