International Foundation for Science. (1982). International Foundation for Science: IFS : Grev Turegatan 19, S-114 39 Stockholm, Sweden. Stockholm, Sweden: International Foundation for Science.
শিকাগো স্টাইলে সাইটেশনInternational Foundation for Science. International Foundation for Science: IFS : Grev Turegatan 19, S-114 39 Stockholm, Sweden. Stockholm, Sweden: International Foundation for Science, 1982.
এমএলএ সাইটেশনInternational Foundation for Science. International Foundation for Science: IFS : Grev Turegatan 19, S-114 39 Stockholm, Sweden. Stockholm, Sweden: International Foundation for Science, 1982.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.