APA Citation

Ludvigsen, R. Upper Cambrian and Lower Ordoviciantrilobite Biostratigraphy of the Rabbitkettle Formation, Western District of Mackenzie / Rolf Ludvigsen. Toronto : ROM.

Chicago Style Citation

Ludvigsen, Rolf. Upper Cambrian and Lower Ordoviciantrilobite Biostratigraphy of the Rabbitkettle Formation, Western District of Mackenzie / Rolf Ludvigsen. Toronto : ROM.

MLA Citation

Ludvigsen, Rolf. Upper Cambrian and Lower Ordoviciantrilobite Biostratigraphy of the Rabbitkettle Formation, Western District of Mackenzie / Rolf Ludvigsen. Toronto : ROM.

Warning: These citations may not always be 100% accurate.