APA (7th ed.) Citation

Jordan, R. R. (1962). Planktonic Foraminifera and the Cretaceous-Tertiary boundary in central Delaware. [publisher not identified].

Chicago Style (17th ed.) Citation

Jordan, Robert R. Planktonic Foraminifera and the Cretaceous-Tertiary Boundary in Central Delaware. [Newark, Del.]: [publisher not identified], 1962.

MLA (9th ed.) Citation

Jordan, Robert R. Planktonic Foraminifera and the Cretaceous-Tertiary Boundary in Central Delaware. [publisher not identified], 1962.

Warning: These citations may not always be 100% accurate.