Rymer, K. (1951). Red alder in british columbia. Department of resources and development, Forest Branch.
Citazione stile Chigago Style (17a edizione)Rymer, K.W. Red Alder in British Columbia. Canada: Department of resources and development, Forest Branch, 1951.
Citatione MLA (9a ed.)Rymer, K.W. Red Alder in British Columbia. Department of resources and development, Forest Branch, 1951.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.