Hatton_Harding_and_Reeder_1964_Seasonal_Changes_USDA_Bull_1310.pdf
Lewis_and_Sylvain_1931_French_LAvocat.pdf
Ochse_1931_Dutch_East_Indies_Avocado.pdf
Oppenheimer_1947.pdf
Popenoe_1934_Manual_of_Trop_and_Subtrop_Fruits.pdf
Traub_and_Robinson_1937_USDA_Yrbk.pdf