APA

Howden H. F., Nealis V. G., .Observations on height of perching in some tropical dung beetles (Scarabaeidae). : .

Chicago

Howden H F, Nealis V G, .Observations on height of perching in some tropical dung beetles (Scarabaeidae). : .

Harvard

Howden H. F., Nealis V. G., .Observations on height of perching in some tropical dung beetles (Scarabaeidae). : .

MLA

Howden H F, Nealis V G, .: . .