APA

Robertson R. N., Hollander R. R. & Jones J. K.Secondary sexual dimorphism and geographic variation in ord's kangaroo rat, Dipodomys ordii, on the llano estacado and in adjacent areas of Texas. : .

Chicago

Robertson Robert N, Hollander Robert R and Jones J Knox.Secondary sexual dimorphism and geographic variation in ord's kangaroo rat, Dipodomys ordii, on the llano estacado and in adjacent areas of Texas. : .

Harvard

Robertson R. N., Hollander R. R. and Jones J. K.Secondary sexual dimorphism and geographic variation in ord's kangaroo rat, Dipodomys ordii, on the llano estacado and in adjacent areas of Texas. : .

MLA

Robertson Robert N, Hollander Robert R and Jones J Knox.: . .