APA

Clapperton C. M., .Nature of enviromental changes in South America at the last Glacial Maximum. : .

Chicago

Clapperton Chalmers M, .Nature of enviromental changes in South America at the last Glacial Maximum. : .

Harvard

Clapperton C. M., .Nature of enviromental changes in South America at the last Glacial Maximum. : .

MLA

Clapperton Chalmers M, .: . .