Cita APA (7th ed.)

Clark, A. H. Preliminary notice of a collection of recent crinoids from the Philippine Islands. s.n.

Cita Chicago (17th ed.)

Clark, Austin Hobart. Preliminary Notice of a Collection of Recent Crinoids from the Philippine Islands. [S.l: s.n.

Cita MLA (9th ed.)

Clark, Austin Hobart. Preliminary Notice of a Collection of Recent Crinoids from the Philippine Islands. s.n.