Cita APA (7a ed.)

Stewart, N., & Church, J. (1993). Red data books of Britain and Ireland: Stoneworts. Joint Nature Conservation Committee.

Cita Chicago Style (17a ed.)

Stewart, N.F, y J.M Church. Red Data Books of Britain and Ireland: Stoneworts. Peterborough: Joint Nature Conservation Committee, 1993.

Cita MLA (9a ed.)

Stewart, N.F, y J.M Church. Red Data Books of Britain and Ireland: Stoneworts. Joint Nature Conservation Committee, 1993.