Cita APA (7th ed.)
Callomon, J. H., Donovan, D. T., & Trümpy, R. (1972). An annotated Map of the Permian and Mesozoic formations of East Greenland. Reitzel.
Cita Chicago (17th ed.)
Callomon, John H., Desmond T. Donovan, i Rudolf Trümpy. An Annotated Map of the Permian and Mesozoic Formations of East Greenland. København: Reitzel, 1972.
Cita MLA (9th ed.)
Callomon, John H., et al. An Annotated Map of the Permian and Mesozoic Formations of East Greenland. Reitzel, 1972.
Atenció: Aquestes cites poden no estar 100% correctes.