(1969). Switzerland's economy and main industries. Lausanne and Zurich: The Swiss Office for the Development of Trade.
استشهاد بنمط شيكاغوSwitzerland's Economy and Main Industries. Lausanne and Zurich: The Swiss Office for the Development of Trade, 1969.
MLA استشهادSwitzerland's Economy and Main Industries. Lausanne and Zurich: The Swiss Office for the Development of Trade, 1969.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.