585
Gro
X
Grogues , Pál 
Xylotomy of the living cycads ; whith a description of their leaves and epidermis . (Tr. by Sánder Országh) Budapest , Akadémiai Kiadó , 1968
260 p. ilus. , láms. mapa , tablas . 25 cm. 
" References " : p. 253 - 255