APA

Roberton L, Lohnson B, . (1988). XV Olympic Winter Games. : .

Chicago

Roberton L, Lohnson B, . 1988. XV Olympic Winter Games. : .

Harvard

Roberton L, Lohnson B, . (1988). XV Olympic Winter Games. : .

MLA

Roberton L, Lohnson B, . XV Olympic Winter Games. : . 1988.