Copy and paste this citation
M.A. Valero,
M.D. Marcos,
A.M. Comes,
M. Sendra
and S. Mas-Coma
(1999).
Comparison of adult liver flukes from highland and lowland populations of Bolivian and Spanish sheep. Journal of Helminthology,
73
,
pp 341-345
doi:10.1017/S0022149X99000578