Philippines (Commonwealth) Army. (1939). Map and aerial photography reading (1939 ed.). Manila: Bureau of Print.
استشهاد بنمط شيكاغوPhilippines (Commonwealth) Army. Map and Aerial Photography Reading. 1939 ed. Manila: Bureau of Print, 1939.
MLA استشهادPhilippines (Commonwealth) Army. Map and Aerial Photography Reading. 1939 ed. Manila: Bureau of Print, 1939.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.