APA

Dougherty K., . (1952). Cosmology. Peekskill, N.Y: Graymoor Press.

Chicago

Dougherty K, . 1952. Cosmology. Peekskill, N.Y: Graymoor Press.

Harvard

Dougherty K., . (1952). Cosmology. Peekskill, N.Y: Graymoor Press.

MLA

Dougherty K, . Cosmology. Peekskill, N.Y: Graymoor Press. 1952.