APA

Higgins A. C., Austin R. L., Higgins A. C. & British Micropalaeontological Society. (1985). A stratigraphical index of conodonts. Chichester: Ellis Horwood for the British Micropalaeontological Society.

Chicago

Higgins Alan Charles, Austin Ronald L, Higgins Alan C and British Micropalaeontological Society. 1985. A stratigraphical index of conodonts. Chichester: Ellis Horwood for the British Micropalaeontological Society.

Harvard

Higgins A. C., Austin R. L., Higgins A. C. and British Micropalaeontological Society. (1985). A stratigraphical index of conodonts. Chichester: Ellis Horwood for the British Micropalaeontological Society.

MLA

Higgins Alan Charles, Austin Ronald L, Higgins Alan C and British Micropalaeontological Society. A stratigraphical index of conodonts. Chichester: Ellis Horwood for the British Micropalaeontological Society. 1985.