APA (7th ed.) Citation

Baxendale, R. W., & Baxter, R. W. (1977). A new fertile schizaeaceous fern from middle Pennsylvanian Iowa coal balls. University of Kansas.

Chicago Style (17th ed.) Citation

Baxendale, R. William, and Robert W. Baxter. A New Fertile Schizaeaceous Fern from Middle Pennsylvanian Iowa Coal Balls. Kansas: University of Kansas, 1977.

MLA (9th ed.) Citation

Baxendale, R. William, and Robert W. Baxter. A New Fertile Schizaeaceous Fern from Middle Pennsylvanian Iowa Coal Balls. University of Kansas, 1977.