APA

Arnold W. T. F., . (1985). Time budget in Galápagos fur seal pups: the influence of the mother's presence and absence on pup activity and play. : .

Chicago

Arnold W Trillmich F, . 1985. Time budget in Galápagos fur seal pups: the influence of the mother's presence and absence on pup activity and play. : .

Harvard

Arnold W. T. F., . (1985). Time budget in Galápagos fur seal pups: the influence of the mother's presence and absence on pup activity and play. : .

MLA

Arnold W Trillmich F, . Time budget in Galápagos fur seal pups: the influence of the mother's presence and absence on pup activity and play. : . 1985.