@book {7264,
	title = {Les esp{\`e}ces d{\textquoteright}hu{\^\i}tres perli{\`e}res du genre <i>Pinctada</i> (Biologie de quelques-unes d{\textquoteright}entre elles)},
	series = {Institut Royal des Sciences Naturelles de Belgique. M{\'e}moires. Deuxi{\`e}me S{\'e}rie},
	volume = {Fasc. 67},
	year = {1961},
	note = {book},
	pages = {1-95, 42 pls.},
	address = {Bruxelles},
	author = {Ranson, G.}
}
@book {1504,
	title = {Les esp{\`e}ces d{\textquoteright}hu{\^\i}tres perli{\`e}res du genre Pinctada (Biologie de quelques-unes d{\textquoteright}entre elles)},
	series = {Institut Royal des Sciences Naturelles de Belgique. M{\'e}moires. Deuxi{\`e}me S{\'e}rie},
	volume = {Fasc. 67},
	year = {1961},
	address = {Bruxelles},
	author = {Ranson, G.}
}
