APA

Jones J. K., Packard R. L., .Feresa intermedia (<Gray>) preoccupied. : .

Chicago

Jones J Knox, Packard Robert L, .Feresa intermedia (<Gray>) preoccupied. : .

Harvard

Jones J. K., Packard R. L., .Feresa intermedia (<Gray>) preoccupied. : .

MLA

Jones J Knox, Packard Robert L, .: . .