APA

Furbank (P.N), . (1980). Units 13-14 The Encyclopedie. : .

Chicago

Furbank (P.N), . 1980. Units 13-14 The Encyclopedie. : .

Harvard

Furbank (P.N), . (1980). Units 13-14 The Encyclopedie. : .

MLA

Furbank (P.N), . Units 13-14 The Encyclopedie. : . 1980.