APA (7th ed.) Citation

Troop, J., & Mickel, J. T. (1968). Petiolar shoots in the Dennstaedtioid and related ferns ([Sonderdr.].).

Chicago Style (17th ed.) Citation

Troop, Judith, and John T. Mickel. Petiolar Shoots in the Dennstaedtioid and Related Ferns. [Sonderdr.]. 1968.

MLA (9th ed.) Citation

Troop, Judith, and John T. Mickel. Petiolar Shoots in the Dennstaedtioid and Related Ferns. [Sonderdr.]. 1968.

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