Cramer, F. H. (1970). Distribution of selected Silurian acritarchs: An account of the palynostratigraphy and paleogeography of selected Silurian acritarch taxa. "Adaro".
Citazione stile Chigago Style (17a edizione)Cramer, Fritz H. Distribution of Selected Silurian Acritarchs: An Account of the Palynostratigraphy and Paleogeography of Selected Silurian Acritarch Taxa. [Madrid]: "Adaro", 1970.
Citatione MLA (8a ed.)Cramer, Fritz H. Distribution of Selected Silurian Acritarchs: An Account of the Palynostratigraphy and Paleogeography of Selected Silurian Acritarch Taxa. "Adaro", 1970.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.