na YOGYA-02090000021340 20090227023526.0 eng 010-020900000021340 YOPDYOG 625.7072 625.7072 Hig HIGHWAY research board Procedings of the twenty-second annual meeting held at hotel statler st.Louis,missouri December 1-4,1942 edited by Roy,W.Crum Washington D.C vii, 494 hlm ilus 25 cm Jalan Raya - Penelitian Crum, Roy M YOPDYOG 48208-a