APA (7th ed.) Citation

Ludvigsen, R. (1983). Franconian trilobites of New York State. Univ. of the State of New York, State Education Dep.

Chicago Style (17th ed.) Citation

Ludvigsen, Rolf. Franconian Trilobites of New York State. Albany, NY: Univ. of the State of New York, State Education Dep, 1983.

MLA (9th ed.) Citation

Ludvigsen, Rolf. Franconian Trilobites of New York State. Univ. of the State of New York, State Education Dep, 1983.

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