APA استشهاد

(1938). Progress in the chemistry of organic natural products. Verlag von Julius, Springer.

استشهاد بنمط شيكاغو

Progress in the Chemistry of Organic Natural Products. Vienna: Verlag von Julius, Springer, 1938.

MLA استشهاد

Progress in the Chemistry of Organic Natural Products. Verlag von Julius, Springer, 1938.