Παραπομπή APA

(1990). Stratigraphic boundary problem in india: :Memoir 16. Geological society of india.

Παραπομπή Chicago Style

Stratigraphic Boundary Problem in India: :Memoir 16. Bangalore: Geological society of india, 1990.

Παραπομπή MLA

Stratigraphic Boundary Problem in India: :Memoir 16. Geological society of india, 1990.