APA (7th ed.) Citation

Crowther, P. R. (1981). The fine structure of graptolite periderm. Palaeontological Association.

Chicago Style (17th ed.) Citation

Crowther, Peter R. The Fine Structure of Graptolite Periderm. London: Palaeontological Association, 1981.

MLA (8th ed.) Citation

Crowther, Peter R. The Fine Structure of Graptolite Periderm. Palaeontological Association, 1981.

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