Παραπομπή APA

SCHULTES,Richard Evans. (1960). NATIVE ORCHIDS OF TRINIDAD AND TOBAGO. PERGAMON PRESS.

Παραπομπή Chicago Style

SCHULTES,Richard Evans. NATIVE ORCHIDS OF TRINIDAD AND TOBAGO. NEW YORK: PERGAMON PRESS, 1960.

Παραπομπή MLA

SCHULTES,Richard Evans. NATIVE ORCHIDS OF TRINIDAD AND TOBAGO. PERGAMON PRESS, 1960.