Cita APA (7a ed.)

Srinivasan, V., & Friis, E. M. (1989). Taxodiaceous conifers from the upper cretaceous of Sweden. Royal Danish Academy of Sciences and Letters.

Cita Chicago Style (17a ed.)

Srinivasan, Vijayalakshmi, y Else Marie Friis. Taxodiaceous Conifers from the Upper Cretaceous of Sweden. Copenhagen: Royal Danish Academy of Sciences and Letters, 1989.

Cita MLA (8a ed.)

Srinivasan, Vijayalakshmi, y Else Marie Friis. Taxodiaceous Conifers from the Upper Cretaceous of Sweden. Royal Danish Academy of Sciences and Letters, 1989.