Cita APA (7th ed.)
Campbell, A. C., Hilgers, H., & Splechtna, H. (1977). Der Kosmos-Strandführer: The Hamlyn Guide to the seashore and shallow seas of Britain and Europe. Franckh.
Cita Chicago (17th ed.)
Campbell, Andrew C., Helge Hilgers, i Heinz Splechtna. Der Kosmos-Strandführer: The Hamlyn Guide to the Seashore and Shallow Seas of Britain and Europe. Stuttgart: Franckh, 1977.
Cita MLA (9th ed.)
Campbell, Andrew C., et al. Der Kosmos-Strandführer: The Hamlyn Guide to the Seashore and Shallow Seas of Britain and Europe. Franckh, 1977.
Atenció: Aquestes cites poden no estar 100% correctes.