APA

Sugden A. M., Robins R. J., .Aspects of the ecology of vascular epiphytes in Colombian cloud forests, I. The distribution of the epiphytic flora. : .

Chicago

Sugden Andrew M, Robins Richard J, .Aspects of the ecology of vascular epiphytes in Colombian cloud forests, I. The distribution of the epiphytic flora. : .

Harvard

Sugden A. M., Robins R. J., .Aspects of the ecology of vascular epiphytes in Colombian cloud forests, I. The distribution of the epiphytic flora. : .

MLA

Sugden Andrew M, Robins Richard J, .: . .