APA (7 ম সংস্করণ) উদ্ধৃতি

Williamson, W. C. (1887). A monograph on the morphology and histology of Stigmaria ficoides. Printed for the Palæontographical society.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Williamson, William Crawford. A Monograph on the Morphology and Histology of Stigmaria Ficoides. London: Printed for the Palæontographical society, 1887.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

Williamson, William Crawford. A Monograph on the Morphology and Histology of Stigmaria Ficoides. Printed for the Palæontographical society, 1887.