@inbook{inbook26d18011,
title   = {Brazilian bee surveys: state of knowledge, conservation and sustainable use},
author = {Pinheiro-Machado, Cynthia and Alves-dos-Santos, Isabel and Imperatriz-Fonseca, Vera Lucia and Kleinert, Astrid de Matos Peixoto and Silveira, Fernando Amaral da},
year = {2006},
publisher = {MMA},
journal   = {Pollinating bees: the conservation link between agriculture and nature. 336 p}
}