Recent changes in the efficiency of vessels fishing for yellowfin tuna in the eastern Pacific Ocean = Cambios recientes en la eficiencia de los barcos que pescan atun aleta amarilla en el Oceano Pacifico oriental
Recent changes in the efficiency of vessels fishing for yellowfin tuna in the eastern Pacific Ocean = Cambios recientes en la eficiencia de los barcos que pescan atun aleta amarilla en el Oceano Pacifico oriental / by Gordon C. Broadhead